Subtract 12/16 from 25/18, Solve 1 7/18

Subtract 12/16 from 25/18

1^st number: 1 7/18, 2^nd number: 12/16

25/18 - 12/16 is 23/36.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 16 is 144

Next, find the equivalent fraction of both fractional numbers with denominator 144
For the 1st fraction, since 18 × 8 = 144,
25/18 = 25 × 8/18 × 8 = 200/144
Likewise, for the 2nd fraction, since 16 × 9 = 144,
12/16 = 12 × 9/16 × 9 = 108/144
Subtract the two like fractions:
200/144 - 108/144 = 200 - 108/144 = 92/144
After reducing the fraction, the answer is 23/36

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