Subtract 72/90 from 15/4
1st number: 3 3/4, 2nd number: 72/90
15/4 - 72/90 is 59/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 4 × 45 = 180,
15/4 = 15 × 45/4 × 45 = 675/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
72/90 = 72 × 2/90 × 2 = 144/180 - Subtract the two like fractions:
675/180 - 144/180 = 675 - 144/180 = 531/180 - After reducing the fraction, the answer is 59/20
- In mixed form: 219/20
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