Subtract 72/64 from 30/20
1st number: 1 10/20, 2nd number: 1 8/64
30/20 - 72/64 is 3/8.
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,
30/20 = 30 × 16/20 × 16 = 480/320 - Likewise, for the 2nd fraction, since 64 × 5 = 320,
72/64 = 72 × 5/64 × 5 = 360/320 - Subtract the two like fractions:
480/320 - 360/320 = 480 - 360/320 = 120/320 - After reducing the fraction, the answer is 3/8
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