Subtract 21/3 from 90/14
1st number: 6 6/14, 2nd number: 7 0/3
90/14 - 21/3 is -4/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 3 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 14 × 3 = 42,
90/14 = 90 × 3/14 × 3 = 270/42 - Likewise, for the 2nd fraction, since 3 × 14 = 42,
21/3 = 21 × 14/3 × 14 = 294/42 - Subtract the two like fractions:
270/42 - 294/42 = 270 - 294/42 = -24/42 - After reducing the fraction, the answer is -4/7
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