Add 21/54 and 70/9
1st number: 21/54, 2nd number: 7 7/9
21/54 + 70/9 is 49/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 9 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 54 × 1 = 54,
21/54 = 21 × 1/54 × 1 = 21/54 - Likewise, for the 2nd fraction, since 9 × 6 = 54,
70/9 = 70 × 6/9 × 6 = 420/54 - Add the two like fractions:
21/54 + 420/54 = 21 + 420/54 = 441/54 - 441/54 simplified gives 49/6
- So, 21/54 + 70/9 = 49/6
In mixed form: 81/6
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