Add 84/12 and 30/70, Solve 7 0/12 + 30/70 as a fraction

Add 84/12 and 30/70

1^st number: 7 0/12, 2^nd number: 30/70

84/12 + 30/70 is 52/7.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 70 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 12 × 35 = 420,
84/12 = 84 × 35/12 × 35 = 2940/420
Likewise, for the 2nd fraction, since 70 × 6 = 420,
30/70 = 30 × 6/70 × 6 = 180/420
Add the two like fractions:
2940/420 + 180/420 = 2940 + 180/420 = 3120/420
3120/420 simplified gives 52/7
So, 84/12 + 30/70 = 52/7
In mixed form: 73/7

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