Subtract 28/80 from 70/75
70/75 - 28/80 is 7/12.
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,
70/75 = 70 × 16/75 × 16 = 1120/1200 - Likewise, for the 2nd fraction, since 80 × 15 = 1200,
28/80 = 28 × 15/80 × 15 = 420/1200 - Subtract the two like fractions:
1120/1200 - 420/1200 = 1120 - 420/1200 = 700/1200 - After reducing the fraction, the answer is 7/12
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