Subtract 90/70 from 80/24
1st number: 3 8/24, 2nd number: 1 20/70
80/24 - 90/70 is 43/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 70 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 24 × 35 = 840,
80/24 = 80 × 35/24 × 35 = 2800/840 - Likewise, for the 2nd fraction, since 70 × 12 = 840,
90/70 = 90 × 12/70 × 12 = 1080/840 - Subtract the two like fractions:
2800/840 - 1080/840 = 2800 - 1080/840 = 1720/840 - After reducing the fraction, the answer is 43/21
- In mixed form: 21/21
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