Subtract 25/80 from 60/21, Solve 2 18/21

Subtract 25/80 from 60/21

1^st number: 2 18/21, 2^nd number: 25/80

60/21 - 25/80 is 285/112.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 80 is 1680

Next, find the equivalent fraction of both fractional numbers with denominator 1680
For the 1st fraction, since 21 × 80 = 1680,
60/21 = 60 × 80/21 × 80 = 4800/1680
Likewise, for the 2nd fraction, since 80 × 21 = 1680,
25/80 = 25 × 21/80 × 21 = 525/1680
Subtract the two like fractions:
4800/1680 - 525/1680 = 4800 - 525/1680 = 4275/1680
After reducing the fraction, the answer is 285/112
In mixed form: 261/112

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