Subtract 70/30 from 90/14
1st number: 6 6/14, 2nd number: 2 10/30
90/14 - 70/30 is 86/21.
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,
90/14 = 90 × 15/14 × 15 = 1350/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
70/30 = 70 × 7/30 × 7 = 490/210 - Subtract the two like fractions:
1350/210 - 490/210 = 1350 - 490/210 = 860/210 - After reducing the fraction, the answer is 86/21
- In mixed form: 42/21
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