Subtract 30/21 from 35/30
1st number: 1 5/30, 2nd number: 1 9/21
35/30 - 30/21 is -11/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 21 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
35/30 = 35 × 7/30 × 7 = 245/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
30/21 = 30 × 10/21 × 10 = 300/210 - Subtract the two like fractions:
245/210 - 300/210 = 245 - 300/210 = -55/210 - After reducing the fraction, the answer is -11/42
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