Subtract 70/21 from 6/25, Solve 6/25

Subtract 70/21 from 6/25

1^st number: 6/25, 2^nd number: 3 7/21

6/25 - 70/21 is -232/75.

Find the least common denominator or LCM of the two denominators:
LCM of 25 and 21 is 525

Next, find the equivalent fraction of both fractional numbers with denominator 525
For the 1st fraction, since 25 × 21 = 525,
6/25 = 6 × 21/25 × 21 = 126/525
Likewise, for the 2nd fraction, since 21 × 25 = 525,
70/21 = 70 × 25/21 × 25 = 1750/525
Subtract the two like fractions:
126/525 - 1750/525 = 126 - 1750/525 = -1624/525
After reducing the fraction, the answer is -232/75

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