Subtract 45/72 from 49/20
1st number: 2 9/20, 2nd number: 45/72
49/20 - 45/72 is 73/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 20 × 18 = 360,
49/20 = 49 × 18/20 × 18 = 882/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
45/72 = 45 × 5/72 × 5 = 225/360 - Subtract the two like fractions:
882/360 - 225/360 = 882 - 225/360 = 657/360 - After reducing the fraction, the answer is 73/40
- In mixed form: 133/40
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