Subtract 20/72 from 15/5
1st number: 3 0/5, 2nd number: 20/72
15/5 - 20/72 is 49/18.
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,
15/5 = 15 × 72/5 × 72 = 1080/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
20/72 = 20 × 5/72 × 5 = 100/360 - Subtract the two like fractions:
1080/360 - 100/360 = 1080 - 100/360 = 980/360 - After reducing the fraction, the answer is 49/18
- In mixed form: 213/18
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