Subtract 5/70 from 81/2
1st number: 40 1/2, 2nd number: 5/70
81/2 - 5/70 is 283/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 2 × 35 = 70,
81/2 = 81 × 35/2 × 35 = 2835/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
5/70 = 5 × 1/70 × 1 = 5/70 - Subtract the two like fractions:
2835/70 - 5/70 = 2835 - 5/70 = 2830/70 - After reducing the fraction, the answer is 283/7
- In mixed form: 403/7
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