Subtract 21/60 from 28/24, Solve 1 4/24

Subtract 21/60 from 28/24

1^st number: 1 4/24, 2^nd number: 21/60

28/24 - 21/60 is 49/60.

Find the least common denominator or LCM of the two denominators:
LCM of 24 and 60 is 120

Next, find the equivalent fraction of both fractional numbers with denominator 120
For the 1st fraction, since 24 × 5 = 120,
28/24 = 28 × 5/24 × 5 = 140/120
Likewise, for the 2nd fraction, since 60 × 2 = 120,
21/60 = 21 × 2/60 × 2 = 42/120
Subtract the two like fractions:
140/120 - 42/120 = 140 - 42/120 = 98/120
After reducing the fraction, the answer is 49/60

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