Subtract 42/60 from 8/45
8/45 - 42/60 is -47/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 60 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
8/45 = 8 × 4/45 × 4 = 32/180 - Likewise, for the 2nd fraction, since 60 × 3 = 180,
42/60 = 42 × 3/60 × 3 = 126/180 - Subtract the two like fractions:
32/180 - 126/180 = 32 - 126/180 = -94/180 - After reducing the fraction, the answer is -47/90
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