Subtract 35/25 from 7/18, Solve 7/18

Subtract 35/25 from 7/18

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

7/18 - 35/25 is -91/90.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 25 is 450

Next, find the equivalent fraction of both fractional numbers with denominator 450
For the 1st fraction, since 18 × 25 = 450,
7/18 = 7 × 25/18 × 25 = 175/450
Likewise, for the 2nd fraction, since 25 × 18 = 450,
35/25 = 35 × 18/25 × 18 = 630/450
Subtract the two like fractions:
175/450 - 630/450 = 175 - 630/450 = -455/450
After reducing the fraction, the answer is -91/90

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