Add 81/25 and 90/70
1st number: 3 6/25, 2nd number: 1 20/70
81/25 + 90/70 is 792/175.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 70 is 350
Next, find the equivalent fraction of both fractional numbers with denominator 350 - For the 1st fraction, since 25 × 14 = 350,
81/25 = 81 × 14/25 × 14 = 1134/350 - Likewise, for the 2nd fraction, since 70 × 5 = 350,
90/70 = 90 × 5/70 × 5 = 450/350 - Add the two like fractions:
1134/350 + 450/350 = 1134 + 450/350 = 1584/350 - 1584/350 simplified gives 792/175
- So, 81/25 + 90/70 = 792/175
In mixed form: 492/175
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