Subtract 81/30 from 42/14
1st number: 3 0/14, 2nd number: 2 21/30
42/14 - 81/30 is 3/10.
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,
42/14 = 42 × 15/14 × 15 = 630/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
81/30 = 81 × 7/30 × 7 = 567/210 - Subtract the two like fractions:
630/210 - 567/210 = 630 - 567/210 = 63/210 - After reducing the fraction, the answer is 3/10
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