Add 21/7 and 70/54, Solve 3 0/7 + 1 16/54 as a fraction

Add 21/7 and 70/54

1^st number: 3 0/7, 2^nd number: 1 16/54

21/7 + 70/54 is 116/27.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 54 is 378

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 7 × 54 = 378,
21/7 = 21 × 54/7 × 54 = 1134/378
Likewise, for the 2nd fraction, since 54 × 7 = 378,
70/54 = 70 × 7/54 × 7 = 490/378
Add the two like fractions:
1134/378 + 490/378 = 1134 + 490/378 = 1624/378
1624/378 simplified gives 116/27
So, 21/7 + 70/54 = 116/27
In mixed form: 48/27

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