Subtract 21/30 from 40/14
1st number: 2 12/14, 2nd number: 21/30
40/14 - 21/30 is 151/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 14 × 15 = 210,
40/14 = 40 × 15/14 × 15 = 600/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
21/30 = 21 × 7/30 × 7 = 147/210 - Subtract the two like fractions:
600/210 - 147/210 = 600 - 147/210 = 453/210 - After reducing the fraction, the answer is 151/70
- In mixed form: 211/70
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