Subtract 42/24 from 1/5, Solve 1/5 - 1 18/24 as a fraction

Subtract 42/24 from 1/5

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

1/5 - 42/24 is -31/20.

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,
1/5 = 1 × 24/5 × 24 = 24/120
Likewise, for the 2nd fraction, since 24 × 5 = 120,
42/24 = 42 × 5/24 × 5 = 210/120
Subtract the two like fractions:
24/120 - 210/120 = 24 - 210/120 = -186/120
After reducing the fraction, the answer is -31/20

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