Subtract 18/28 from 36/30, Solve 1 6/30

Subtract 18/28 from 36/30

1^st number: 1 6/30, 2^nd number: 18/28

36/30 - 18/28 is 39/70.

Find the least common denominator or LCM of the two denominators:
LCM of 30 and 28 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 30 × 14 = 420,
36/30 = 36 × 14/30 × 14 = 504/420
Likewise, for the 2nd fraction, since 28 × 15 = 420,
18/28 = 18 × 15/28 × 15 = 270/420
Subtract the two like fractions:
504/420 - 270/420 = 504 - 270/420 = 234/420
After reducing the fraction, the answer is 39/70

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