Subtract 21/27 from 30/25, Solve 1 5/25

Subtract 21/27 from 30/25

1^st number: 1 5/25, 2^nd number: 21/27

30/25 - 21/27 is 19/45.

Find the least common denominator or LCM of the two denominators:
LCM of 25 and 27 is 675

Next, find the equivalent fraction of both fractional numbers with denominator 675
For the 1st fraction, since 25 × 27 = 675,
30/25 = 30 × 27/25 × 27 = 810/675
Likewise, for the 2nd fraction, since 27 × 25 = 675,
21/27 = 21 × 25/27 × 25 = 525/675
Subtract the two like fractions:
810/675 - 525/675 = 810 - 525/675 = 285/675
After reducing the fraction, the answer is 19/45

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