Subtract 28/32 from 45/70
45/70 - 28/32 is -13/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 32 is 1120
Next, find the equivalent fraction of both fractional numbers with denominator 1120 - For the 1st fraction, since 70 × 16 = 1120,
45/70 = 45 × 16/70 × 16 = 720/1120 - Likewise, for the 2nd fraction, since 32 × 35 = 1120,
28/32 = 28 × 35/32 × 35 = 980/1120 - Subtract the two like fractions:
720/1120 - 980/1120 = 720 - 980/1120 = -260/1120 - After reducing the fraction, the answer is -13/56
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