Add 21/84 and 70/54
1st number: 21/84, 2nd number: 1 16/54
21/84 + 70/54 is 167/108.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 54 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 84 × 9 = 756,
21/84 = 21 × 9/84 × 9 = 189/756 - Likewise, for the 2nd fraction, since 54 × 14 = 756,
70/54 = 70 × 14/54 × 14 = 980/756 - Add the two like fractions:
189/756 + 980/756 = 189 + 980/756 = 1169/756 - 1169/756 simplified gives 167/108
- So, 21/84 + 70/54 = 167/108
In mixed form: 159/108
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