Add and subtract fractions that have different denominators

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QUESTION OF
Views #: 636
Questions #: 8
Time: 5 minutes
Pass Score: 80.0%
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Least Common Denominator

1 pts
volume_mute

The least common denominator (LCD) for a set of fractions is the smallest number each denominator will divide exactly (divide with no remainder)

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Add the following fractions

1 pts

$\frac35 + \frac13$

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Put the following steps in order to find the right process of adding fractions with different denominators

Add the following fractions and simplify if possible

1 pts

$\frac17 + \frac23$

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Subtract

1 pts

$\frac52 - \frac73$

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Subtract

1 pts

$\frac25 - \frac{11}{15}$

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When adding (or subtracting) two fractions with different denominators

1 pts
volume_mute

If the smaller denominator is a factor of the larger denominator

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Add

1 pts

$-5 + \frac34$

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0
sin cos tan
sin-1 cos-1 tan-1 π e
xy x3 x2 ex 10x
y√x 3√x √x ln log
( ) 1/x % n!
7 8 9 + MS
4 5 6 – M+
1 2 3 × M-
0 . EXP ÷ MR
± RND C = MC
Keywords
Year 5