Subtract 12/72 from 42/15
1st number: 2 12/15, 2nd number: 12/72
42/15 - 12/72 is 79/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 15 × 24 = 360,
42/15 = 42 × 24/15 × 24 = 1008/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
12/72 = 12 × 5/72 × 5 = 60/360 - Subtract the two like fractions:
1008/360 - 60/360 = 1008 - 60/360 = 948/360 - After reducing the fraction, the answer is 79/30
- In mixed form: 219/30
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