Subtract 90/64 from 1/20
1st number: 1/20, 2nd number: 1 26/64
1/20 - 90/64 is -217/160.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 64 is 320
Next, find the equivalent fraction of both fractional numbers with denominator 320 - For the 1st fraction, since 20 × 16 = 320,
1/20 = 1 × 16/20 × 16 = 16/320 - Likewise, for the 2nd fraction, since 64 × 5 = 320,
90/64 = 90 × 5/64 × 5 = 450/320 - Subtract the two like fractions:
16/320 - 450/320 = 16 - 450/320 = -434/320 - After reducing the fraction, the answer is -217/160
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