Subtract 70/7 from 18/25, Solve 18/25

Subtract 70/7 from 18/25

1^st number: 18/25, 2^nd number: 10 0/7

18/25 - 70/7 is -232/25.

Find the least common denominator or LCM of the two denominators:
LCM of 25 and 7 is 175

Next, find the equivalent fraction of both fractional numbers with denominator 175
For the 1st fraction, since 25 × 7 = 175,
18/25 = 18 × 7/25 × 7 = 126/175
Likewise, for the 2nd fraction, since 7 × 25 = 175,
70/7 = 70 × 25/7 × 25 = 1750/175
Subtract the two like fractions:
126/175 - 1750/175 = 126 - 1750/175 = -1624/175
After reducing the fraction, the answer is -232/25

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