Add 70/36 and 21/81
1st number: 1 34/36, 2nd number: 21/81
70/36 + 21/81 is 119/54.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 81 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 36 × 9 = 324,
70/36 = 70 × 9/36 × 9 = 630/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
21/81 = 21 × 4/81 × 4 = 84/324 - Add the two like fractions:
630/324 + 84/324 = 630 + 84/324 = 714/324 - 714/324 simplified gives 119/54
- So, 70/36 + 21/81 = 119/54
In mixed form: 211/54
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