Subtract 21/32 from 3/70
3/70 - 21/32 is -687/1120.
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,
3/70 = 3 × 16/70 × 16 = 48/1120 - Likewise, for the 2nd fraction, since 32 × 35 = 1120,
21/32 = 21 × 35/32 × 35 = 735/1120 - Subtract the two like fractions:
48/1120 - 735/1120 = 48 - 735/1120 = -687/1120
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