Subtract 30/27 from 40/25, Solve 1 15/25

Subtract 30/27 from 40/25

1^st number: 1 15/25, 2^nd number: 1 3/27

40/25 - 30/27 is 22/45.

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,
40/25 = 40 × 27/25 × 27 = 1080/675
Likewise, for the 2nd fraction, since 27 × 25 = 675,
30/27 = 30 × 25/27 × 25 = 750/675
Subtract the two like fractions:
1080/675 - 750/675 = 1080 - 750/675 = 330/675
After reducing the fraction, the answer is 22/45

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