Subtract 20/70 from 4/64
4/64 - 20/70 is -25/112.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 64 and 70 is 2240
Next, find the equivalent fraction of both fractional numbers with denominator 2240 - For the 1st fraction, since 64 × 35 = 2240,
4/64 = 4 × 35/64 × 35 = 140/2240 - Likewise, for the 2nd fraction, since 70 × 32 = 2240,
20/70 = 20 × 32/70 × 32 = 640/2240 - Subtract the two like fractions:
140/2240 - 640/2240 = 140 - 640/2240 = -500/2240 - After reducing the fraction, the answer is -25/112
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