Subtract 42/80 from 6/15
6/15 - 42/80 is -1/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 15 × 16 = 240,
6/15 = 6 × 16/15 × 16 = 96/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
42/80 = 42 × 3/80 × 3 = 126/240 - Subtract the two like fractions:
96/240 - 126/240 = 96 - 126/240 = -30/240 - After reducing the fraction, the answer is -1/8
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