Subtract 90/70 from 72/8
1st number: 9 0/8, 2nd number: 1 20/70
72/8 - 90/70 is 54/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 70 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 8 × 35 = 280,
72/8 = 72 × 35/8 × 35 = 2520/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
90/70 = 90 × 4/70 × 4 = 360/280 - Subtract the two like fractions:
2520/280 - 360/280 = 2520 - 360/280 = 2160/280 - After reducing the fraction, the answer is 54/7
- In mixed form: 75/7
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