Subtract 3/42 from 70/25, Solve 2 20/25

Subtract 3/42 from 70/25

1^st number: 2 20/25, 2^nd number: 3/42

70/25 - 3/42 is 191/70.

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,
70/25 = 70 × 42/25 × 42 = 2940/1050
Likewise, for the 2nd fraction, since 42 × 25 = 1050,
3/42 = 3 × 25/42 × 25 = 75/1050
Subtract the two like fractions:
2940/1050 - 75/1050 = 2940 - 75/1050 = 2865/1050
After reducing the fraction, the answer is 191/70
In mixed form: 251/70

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