Subtract 80/14 from 30/36, Solve 30/36

Subtract 80/14 from 30/36

1^st number: 30/36, 2^nd number: 5 10/14

30/36 - 80/14 is -205/42.

Find the least common denominator or LCM of the two denominators:
LCM of 36 and 14 is 252

Next, find the equivalent fraction of both fractional numbers with denominator 252
For the 1st fraction, since 36 × 7 = 252,
30/36 = 30 × 7/36 × 7 = 210/252
Likewise, for the 2nd fraction, since 14 × 18 = 252,
80/14 = 80 × 18/14 × 18 = 1440/252
Subtract the two like fractions:
210/252 - 1440/252 = 210 - 1440/252 = -1230/252
After reducing the fraction, the answer is -205/42

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