Add 5/70 and 90/81
1st number: 5/70, 2nd number: 1 9/81
5/70 + 90/81 is 149/126.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 81 is 5670
Next, find the equivalent fraction of both fractional numbers with denominator 5670 - For the 1st fraction, since 70 × 81 = 5670,
5/70 = 5 × 81/70 × 81 = 405/5670 - Likewise, for the 2nd fraction, since 81 × 70 = 5670,
90/81 = 90 × 70/81 × 70 = 6300/5670 - Add the two like fractions:
405/5670 + 6300/5670 = 405 + 6300/5670 = 6705/5670 - 6705/5670 simplified gives 149/126
- So, 5/70 + 90/81 = 149/126
In mixed form: 123/126
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