Subtract 7/80 from 27/42
27/42 - 7/80 is 311/560.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 80 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 42 × 40 = 1680,
27/42 = 27 × 40/42 × 40 = 1080/1680 - Likewise, for the 2nd fraction, since 80 × 21 = 1680,
7/80 = 7 × 21/80 × 21 = 147/1680 - Subtract the two like fractions:
1080/1680 - 147/1680 = 1080 - 147/1680 = 933/1680 - After reducing the fraction, the answer is 311/560
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