Subtract 8/20 from 32/42
32/42 - 8/20 is 38/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 20 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 42 × 10 = 420,
32/42 = 32 × 10/42 × 10 = 320/420 - Likewise, for the 2nd fraction, since 20 × 21 = 420,
8/20 = 8 × 21/20 × 21 = 168/420 - Subtract the two like fractions:
320/420 - 168/420 = 320 - 168/420 = 152/420 - After reducing the fraction, the answer is 38/105
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