Subtract 20/30 from 63/28
1st number: 2 7/28, 2nd number: 20/30
63/28 - 20/30 is 19/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 30 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 28 × 15 = 420,
63/28 = 63 × 15/28 × 15 = 945/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
20/30 = 20 × 14/30 × 14 = 280/420 - Subtract the two like fractions:
945/420 - 280/420 = 945 - 280/420 = 665/420 - After reducing the fraction, the answer is 19/12
- In mixed form: 17/12
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