Subtract 64/10 from 49/20
1st number: 2 9/20, 2nd number: 6 4/10
49/20 - 64/10 is -79/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 10 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 20 × 1 = 20,
49/20 = 49 × 1/20 × 1 = 49/20 - Likewise, for the 2nd fraction, since 10 × 2 = 20,
64/10 = 64 × 2/10 × 2 = 128/20 - Subtract the two like fractions:
49/20 - 128/20 = 49 - 128/20 = -79/20
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