Subtract 70/20 from 70/8
1st number: 8 6/8, 2nd number: 3 10/20
70/8 - 70/20 is 21/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 20 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
70/8 = 70 × 5/8 × 5 = 350/40 - Likewise, for the 2nd fraction, since 20 × 2 = 40,
70/20 = 70 × 2/20 × 2 = 140/40 - Subtract the two like fractions:
350/40 - 140/40 = 350 - 140/40 = 210/40 - After reducing the fraction, the answer is 21/4
- In mixed form: 51/4
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