Subtract 28/35 from 18/12, Solve 1 6/12

Subtract 28/35 from 18/12

1^st number: 1 6/12, 2^nd number: 28/35

18/12 - 28/35 is 7/10.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 35 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 12 × 35 = 420,
18/12 = 18 × 35/12 × 35 = 630/420
Likewise, for the 2nd fraction, since 35 × 12 = 420,
28/35 = 28 × 12/35 × 12 = 336/420
Subtract the two like fractions:
630/420 - 336/420 = 630 - 336/420 = 294/420
After reducing the fraction, the answer is 7/10

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