Subtract 9/15 from 6/80
6/80 - 9/15 is -21/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 15 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
6/80 = 6 × 3/80 × 3 = 18/240 - Likewise, for the 2nd fraction, since 15 × 16 = 240,
9/15 = 9 × 16/15 × 16 = 144/240 - Subtract the two like fractions:
18/240 - 144/240 = 18 - 144/240 = -126/240 - After reducing the fraction, the answer is -21/40
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