Subtract 45/42 from 27/80
1st number: 27/80, 2nd number: 1 3/42
27/80 - 45/42 is -411/560.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 42 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 80 × 21 = 1680,
27/80 = 27 × 21/80 × 21 = 567/1680 - Likewise, for the 2nd fraction, since 42 × 40 = 1680,
45/42 = 45 × 40/42 × 40 = 1800/1680 - Subtract the two like fractions:
567/1680 - 1800/1680 = 567 - 1800/1680 = -1233/1680 - After reducing the fraction, the answer is -411/560
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