Subtract 7/70 from 21/32
21/32 - 7/70 is 89/160.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 70 is 1120
Next, find the equivalent fraction of both fractional numbers with denominator 1120 - For the 1st fraction, since 32 × 35 = 1120,
21/32 = 21 × 35/32 × 35 = 735/1120 - Likewise, for the 2nd fraction, since 70 × 16 = 1120,
7/70 = 7 × 16/70 × 16 = 112/1120 - Subtract the two like fractions:
735/1120 - 112/1120 = 735 - 112/1120 = 623/1120 - After reducing the fraction, the answer is 89/160
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