Subtract 7/10 from 9/80
9/80 - 7/10 is -47/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 10 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
9/80 = 9 × 1/80 × 1 = 9/80 - Likewise, for the 2nd fraction, since 10 × 8 = 80,
7/10 = 7 × 8/10 × 8 = 56/80 - Subtract the two like fractions:
9/80 - 56/80 = 9 - 56/80 = -47/80
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