Subtract 12/14 from 72/4
1st number: 18 0/4, 2nd number: 12/14
72/4 - 12/14 is 120/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 14 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 4 × 7 = 28,
72/4 = 72 × 7/4 × 7 = 504/28 - Likewise, for the 2nd fraction, since 14 × 2 = 28,
12/14 = 12 × 2/14 × 2 = 24/28 - Subtract the two like fractions:
504/28 - 24/28 = 504 - 24/28 = 480/28 - After reducing the fraction, the answer is 120/7
- In mixed form: 171/7
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