Subtract 21/64 from 30/4
1st number: 7 2/4, 2nd number: 21/64
30/4 - 21/64 is 459/64.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 64 is 64
Next, find the equivalent fraction of both fractional numbers with denominator 64 - For the 1st fraction, since 4 × 16 = 64,
30/4 = 30 × 16/4 × 16 = 480/64 - Likewise, for the 2nd fraction, since 64 × 1 = 64,
21/64 = 21 × 1/64 × 1 = 21/64 - Subtract the two like fractions:
480/64 - 21/64 = 480 - 21/64 = 459/64 - In mixed form: 711/64
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