Subtract 42/27 from 45/25, Solve 1 20/25

Subtract 42/27 from 45/25

1^st number: 1 20/25, 2^nd number: 1 15/27

45/25 - 42/27 is 11/45.

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,
45/25 = 45 × 27/25 × 27 = 1215/675
Likewise, for the 2nd fraction, since 27 × 25 = 675,
42/27 = 42 × 25/27 × 25 = 1050/675
Subtract the two like fractions:
1215/675 - 1050/675 = 1215 - 1050/675 = 165/675
After reducing the fraction, the answer is 11/45

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