Subtract 40/70 from 70/15
1st number: 4 10/15, 2nd number: 40/70
70/15 - 40/70 is 86/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 15 × 14 = 210,
70/15 = 70 × 14/15 × 14 = 980/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
40/70 = 40 × 3/70 × 3 = 120/210 - Subtract the two like fractions:
980/210 - 120/210 = 980 - 120/210 = 860/210 - After reducing the fraction, the answer is 86/21
- In mixed form: 42/21
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