Subtract 12/72 from 75/30
1st number: 2 15/30, 2nd number: 12/72
75/30 - 12/72 is 7/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 30 × 12 = 360,
75/30 = 75 × 12/30 × 12 = 900/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
12/72 = 12 × 5/72 × 5 = 60/360 - Subtract the two like fractions:
900/360 - 60/360 = 900 - 60/360 = 840/360 - After reducing the fraction, the answer is 7/3
- In mixed form: 21/3
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