Subtract 81/32 from 28/70
1st number: 28/70, 2nd number: 2 17/32
28/70 - 81/32 is -341/160.
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,
28/70 = 28 × 16/70 × 16 = 448/1120 - Likewise, for the 2nd fraction, since 32 × 35 = 1120,
81/32 = 81 × 35/32 × 35 = 2835/1120 - Subtract the two like fractions:
448/1120 - 2835/1120 = 448 - 2835/1120 = -2387/1120 - After reducing the fraction, the answer is -341/160
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