Subtract 18/30 from 21/14
1st number: 1 7/14, 2nd number: 18/30
21/14 - 18/30 is 9/10.
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,
21/14 = 21 × 15/14 × 15 = 315/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
18/30 = 18 × 7/30 × 7 = 126/210 - Subtract the two like fractions:
315/210 - 126/210 = 315 - 126/210 = 189/210 - After reducing the fraction, the answer is 9/10
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