Subtract 20/5 from 70/8
1st number: 8 6/8, 2nd number: 4 0/5
70/8 - 20/5 is 19/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 5 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 5 × 8 = 40,
20/5 = 20 × 8/5 × 8 = 160/40 - Subtract the two like fractions:
350/40 - 160/40 = 350 - 160/40 = 190/40 - After reducing the fraction, the answer is 19/4
- In mixed form: 43/4
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