Add 70/12 and 30/84, Solve 5 10/12 + 30/84 as a fraction

Add 70/12 and 30/84

1^st number: 5 10/12, 2^nd number: 30/84

70/12 + 30/84 is 130/21.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 84 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 12 × 7 = 84,
70/12 = 70 × 7/12 × 7 = 490/84
Likewise, for the 2nd fraction, since 84 × 1 = 84,
30/84 = 30 × 1/84 × 1 = 30/84
Add the two like fractions:
490/84 + 30/84 = 490 + 30/84 = 520/84
520/84 simplified gives 130/21
So, 70/12 + 30/84 = 130/21
In mixed form: 64/21

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