Add 30/81 and 72/70
1st number: 30/81, 2nd number: 1 2/70
30/81 + 72/70 is 1322/945.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 70 is 5670
Next, find the equivalent fraction of both fractional numbers with denominator 5670 - For the 1st fraction, since 81 × 70 = 5670,
30/81 = 30 × 70/81 × 70 = 2100/5670 - Likewise, for the 2nd fraction, since 70 × 81 = 5670,
72/70 = 72 × 81/70 × 81 = 5832/5670 - Add the two like fractions:
2100/5670 + 5832/5670 = 2100 + 5832/5670 = 7932/5670 - 7932/5670 simplified gives 1322/945
- So, 30/81 + 72/70 = 1322/945
In mixed form: 1377/945
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