Subtract 28/72 from 63/3, Solve 21 0/3

Subtract 28/72 from 63/3

1^st number: 21 0/3, 2^nd number: 28/72

63/3 - 28/72 is 371/18.

Find the least common denominator or LCM of the two denominators:
LCM of 3 and 72 is 72

Next, find the equivalent fraction of both fractional numbers with denominator 72
For the 1st fraction, since 3 × 24 = 72,
63/3 = 63 × 24/3 × 24 = 1512/72
Likewise, for the 2nd fraction, since 72 × 1 = 72,
28/72 = 28 × 1/72 × 1 = 28/72
Subtract the two like fractions:
1512/72 - 28/72 = 1512 - 28/72 = 1484/72
After reducing the fraction, the answer is 371/18
In mixed form: 2011/18

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