Subtract 90/72 from 20/5
1st number: 4 0/5, 2nd number: 1 18/72
20/5 - 90/72 is 11/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 5 × 72 = 360,
20/5 = 20 × 72/5 × 72 = 1440/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
90/72 = 90 × 5/72 × 5 = 450/360 - Subtract the two like fractions:
1440/360 - 450/360 = 1440 - 450/360 = 990/360 - After reducing the fraction, the answer is 11/4
- In mixed form: 23/4
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