Subtract 30/28 from 72/36
1st number: 2 0/36, 2nd number: 1 2/28
72/36 - 30/28 is 13/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 28 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 36 × 7 = 252,
72/36 = 72 × 7/36 × 7 = 504/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
30/28 = 30 × 9/28 × 9 = 270/252 - Subtract the two like fractions:
504/252 - 270/252 = 504 - 270/252 = 234/252 - After reducing the fraction, the answer is 13/14
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