Subtract 45/50 from 72/20
1st number: 3 12/20, 2nd number: 45/50
72/20 - 45/50 is 27/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 50 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 20 × 5 = 100,
72/20 = 72 × 5/20 × 5 = 360/100 - Likewise, for the 2nd fraction, since 50 × 2 = 100,
45/50 = 45 × 2/50 × 2 = 90/100 - Subtract the two like fractions:
360/100 - 90/100 = 360 - 90/100 = 270/100 - After reducing the fraction, the answer is 27/10
- In mixed form: 27/10
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