Subtract 20/15 from 16/14
1st number: 1 2/14, 2nd number: 1 5/15
16/14 - 20/15 is -4/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 15 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 14 × 15 = 210,
16/14 = 16 × 15/14 × 15 = 240/210 - Likewise, for the 2nd fraction, since 15 × 14 = 210,
20/15 = 20 × 14/15 × 14 = 280/210 - Subtract the two like fractions:
240/210 - 280/210 = 240 - 280/210 = -40/210 - After reducing the fraction, the answer is -4/21
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