Subtract 4/14 from 30/21
1st number: 1 9/21, 2nd number: 4/14
30/21 - 4/14 is 8/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 14 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,
30/21 = 30 × 2/21 × 2 = 60/42 - Likewise, for the 2nd fraction, since 14 × 3 = 42,
4/14 = 4 × 3/14 × 3 = 12/42 - Subtract the two like fractions:
60/42 - 12/42 = 60 - 12/42 = 48/42 - After reducing the fraction, the answer is 8/7
- In mixed form: 11/7
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