Subtract 9/72 from 28/14, Solve 2 0/14

Subtract 9/72 from 28/14

1^st number: 2 0/14, 2^nd number: 9/72

28/14 - 9/72 is 15/8.

Find the least common denominator or LCM of the two denominators:
LCM of 14 and 72 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 14 × 36 = 504,
28/14 = 28 × 36/14 × 36 = 1008/504
Likewise, for the 2nd fraction, since 72 × 7 = 504,
9/72 = 9 × 7/72 × 7 = 63/504
Subtract the two like fractions:
1008/504 - 63/504 = 1008 - 63/504 = 945/504
After reducing the fraction, the answer is 15/8
In mixed form: 17/8

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