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Date	Content
Oct 05, 2022	Negative fractions are simplified in the same way as positive fractions
Oct 05, 2022	Write fraction $\frac{63}{36}$ in its simplest form
Oct 04, 2022	Simplify fraction $\frac{90}{105}$
Oct 04, 2022	What is the simplest form of $\frac{7}{21}$?
Sep 15, 2022	Overall charge
Sep 15, 2022	The sum of the number of protons and neutrons in a nucleus is called __________ of the isotope
Sep 15, 2022	Hydrogen deuterium and tritium
Sep 15, 2022	Atoms of the same element that have different numbers of neutrons are called __________
Sep 15, 2022	Atoms of the same element can have different numbers of neutrons
Sep 15, 2022	Hydrogen and iron atomic numbers