Subtract 90/70 from 81/16
1st number: 5 1/16, 2nd number: 1 20/70
81/16 - 90/70 is 423/112.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 70 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 16 × 35 = 560,
81/16 = 81 × 35/16 × 35 = 2835/560 - Likewise, for the 2nd fraction, since 70 × 8 = 560,
90/70 = 90 × 8/70 × 8 = 720/560 - Subtract the two like fractions:
2835/560 - 720/560 = 2835 - 720/560 = 2115/560 - After reducing the fraction, the answer is 423/112
- In mixed form: 387/112
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