Subtract 42/24 from 8/5, Solve 1 3/5

Subtract 42/24 from 8/5

1^st number: 1 3/5, 2^nd number: 1 18/24

8/5 - 42/24 is -3/20.

Find the least common denominator or LCM of the two denominators:
LCM of 5 and 24 is 120

Next, find the equivalent fraction of both fractional numbers with denominator 120
For the 1st fraction, since 5 × 24 = 120,
8/5 = 8 × 24/5 × 24 = 192/120
Likewise, for the 2nd fraction, since 24 × 5 = 120,
42/24 = 42 × 5/24 × 5 = 210/120
Subtract the two like fractions:
192/120 - 210/120 = 192 - 210/120 = -18/120
After reducing the fraction, the answer is -3/20

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