Subtract 3/64 from 21/18
1st number: 1 3/18, 2nd number: 3/64
21/18 - 3/64 is 215/192.
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,
21/18 = 21 × 32/18 × 32 = 672/576 - Likewise, for the 2nd fraction, since 64 × 9 = 576,
3/64 = 3 × 9/64 × 9 = 27/576 - Subtract the two like fractions:
672/576 - 27/576 = 672 - 27/576 = 645/576 - After reducing the fraction, the answer is 215/192
- In mixed form: 123/192
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