Subtract 45/8 from 49/20
1st number: 2 9/20, 2nd number: 5 5/8
49/20 - 45/8 is -127/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 20 × 2 = 40,
49/20 = 49 × 2/20 × 2 = 98/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
45/8 = 45 × 5/8 × 5 = 225/40 - Subtract the two like fractions:
98/40 - 225/40 = 98 - 225/40 = -127/40
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