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

Subtract 70/6 from 21/25

1^st number: 21/25, 2^nd number: 11 4/6

21/25 - 70/6 is -812/75.

Find the least common denominator or LCM of the two denominators:
LCM of 25 and 6 is 150

Next, find the equivalent fraction of both fractional numbers with denominator 150
For the 1st fraction, since 25 × 6 = 150,
21/25 = 21 × 6/25 × 6 = 126/150
Likewise, for the 2nd fraction, since 6 × 25 = 150,
70/6 = 70 × 25/6 × 25 = 1750/150
Subtract the two like fractions:
126/150 - 1750/150 = 126 - 1750/150 = -1624/150
After reducing the fraction, the answer is -812/75

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