Subtract 42/72 from 50/30
1st number: 1 20/30, 2nd number: 42/72
50/30 - 42/72 is 13/12.
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,
50/30 = 50 × 12/30 × 12 = 600/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
42/72 = 42 × 5/72 × 5 = 210/360 - Subtract the two like fractions:
600/360 - 210/360 = 600 - 210/360 = 390/360 - After reducing the fraction, the answer is 13/12
- In mixed form: 11/12
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