Question

Subtract:
(i) -5/6 from -7/8
(ii) 2 1/5 from -3 1/6
Answer Fast​

Answer 1

Find the least common denominator or LCM of the two denominators:

LCM of 8 and 6 is 24

Next, find the equivalent fraction of both fractional numbers with denominator 24

For the 1st fraction, since 8 × 3 = 24,

78 = 7 × 38 × 3 = 2124

Likewise, for the 2nd fraction, since 6 × 4 = 24,

56 = 5 × 46 × 4 = 2024

Subtract the two like fractions:

2124 - 2024 = 21 - 2024 = 124