Subtract 4/80 from 72/75
72/75 - 4/80 is 91/100.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 80 is 1200
Next, find the equivalent fraction of both fractional numbers with denominator 1200 - For the 1st fraction, since 75 × 16 = 1200,
72/75 = 72 × 16/75 × 16 = 1152/1200 - Likewise, for the 2nd fraction, since 80 × 15 = 1200,
4/80 = 4 × 15/80 × 15 = 60/1200 - Subtract the two like fractions:
1152/1200 - 60/1200 = 1152 - 60/1200 = 1092/1200 - After reducing the fraction, the answer is 91/100
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