Add 70/84 and 81/54, Solve 70/84 + 1 27/54 as a fraction

Add 70/84 and 81/54

1^st number: 70/84, 2^nd number: 1 27/54

70/84 + 81/54 is 7/3.

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,
70/84 = 70 × 9/84 × 9 = 630/756
Likewise, for the 2nd fraction, since 54 × 14 = 756,
81/54 = 81 × 14/54 × 14 = 1134/756
Add the two like fractions:
630/756 + 1134/756 = 630 + 1134/756 = 1764/756
1764/756 simplified gives 7/3
So, 70/84 + 81/54 = 7/3
In mixed form: 21/3

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