Adding and subtracting fractions

Question 1

Write the Lowest Common Multiple (LCM) of these pairs of numbers

a	2 and 3 2, 4, 6, 8, 10, 12, 14, 16… 3, 6, 9, 12, 15, 18, 21, 24… LCM is
b	8 and 12 8, 16, 24, 32, 40, 48, 56, 64, 72, 84… 12, 24, 36, 48, 60, 72, 84, 96… LCM is
c	4 and 5 LCM is
d	6 and 8 LCM is

Question 2

Calculate

a	\(\dfrac{1}{2} + \dfrac{1}{3}\) =	Numerator — Denominator
b	\(\dfrac{11}{12} − \dfrac{5}{8}\) =	Numerator — Denominator

Question 3

Select the correct fraction

Question 2a - multiple choice question

a	\(\dfrac{3}{4} + \dfrac{3}{5}\) =	\(\dfrac{6}{9}\) or	\(\dfrac{6}{12}\) or	\(1\dfrac{7}{20}\)

Question 3b - multiple choice question

b	\(\dfrac{7}{8} − \dfrac{5}{6}\) =	\(\dfrac{1}{24}\) or	\(\dfrac{2}{14}\) or	\(\dfrac{2}{2}\)