Subtract 18/49 from 72/36, Solve 2 0/36

Subtract 18/49 from 72/36

1^st number: 2 0/36, 2^nd number: 18/49

72/36 - 18/49 is 80/49.

Find the least common denominator or LCM of the two denominators:
LCM of 36 and 49 is 1764

Next, find the equivalent fraction of both fractional numbers with denominator 1764
For the 1st fraction, since 36 × 49 = 1764,
72/36 = 72 × 49/36 × 49 = 3528/1764
Likewise, for the 2nd fraction, since 49 × 36 = 1764,
18/49 = 18 × 36/49 × 36 = 648/1764
Subtract the two like fractions:
3528/1764 - 648/1764 = 3528 - 648/1764 = 2880/1764
After reducing the fraction, the answer is 80/49
In mixed form: 131/49

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