Subtract 25/28 from 60/21, Solve 2 18/21

Subtract 25/28 from 60/21

1^st number: 2 18/21, 2^nd number: 25/28

60/21 - 25/28 is 55/28.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 28 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 21 × 4 = 84,
60/21 = 60 × 4/21 × 4 = 240/84
Likewise, for the 2nd fraction, since 28 × 3 = 84,
25/28 = 25 × 3/28 × 3 = 75/84
Subtract the two like fractions:
240/84 - 75/84 = 240 - 75/84 = 165/84
After reducing the fraction, the answer is 55/28
In mixed form: 127/28

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