Subtract 28/7 from 2/72, Solve 2/72

Subtract 28/7 from 2/72

1^st number: 2/72, 2^nd number: 4 0/7

2/72 - 28/7 is -143/36.

Find the least common denominator or LCM of the two denominators:
LCM of 72 and 7 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 72 × 7 = 504,
2/72 = 2 × 7/72 × 7 = 14/504
Likewise, for the 2nd fraction, since 7 × 72 = 504,
28/7 = 28 × 72/7 × 72 = 2016/504
Subtract the two like fractions:
14/504 - 2016/504 = 14 - 2016/504 = -2002/504
After reducing the fraction, the answer is -143/36

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