Subtract 1/42 from 40/25, Solve 1 15/25

Subtract 1/42 from 40/25

1^st number: 1 15/25, 2^nd number: 1/42

40/25 - 1/42 is 331/210.

Find the least common denominator or LCM of the two denominators:
LCM of 25 and 42 is 1050

Next, find the equivalent fraction of both fractional numbers with denominator 1050
For the 1st fraction, since 25 × 42 = 1050,
40/25 = 40 × 42/25 × 42 = 1680/1050
Likewise, for the 2nd fraction, since 42 × 25 = 1050,
1/42 = 1 × 25/42 × 25 = 25/1050
Subtract the two like fractions:
1680/1050 - 25/1050 = 1680 - 25/1050 = 1655/1050
After reducing the fraction, the answer is 331/210
In mixed form: 1121/210

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