Subtract 42/64 from 90/18
1st number: 5 0/18, 2nd number: 42/64
90/18 - 42/64 is 139/32.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 64 is 576
Next, find the equivalent fraction of both fractional numbers with denominator 576 - For the 1st fraction, since 18 × 32 = 576,
90/18 = 90 × 32/18 × 32 = 2880/576 - Likewise, for the 2nd fraction, since 64 × 9 = 576,
42/64 = 42 × 9/64 × 9 = 378/576 - Subtract the two like fractions:
2880/576 - 378/576 = 2880 - 378/576 = 2502/576 - After reducing the fraction, the answer is 139/32
- In mixed form: 411/32
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