Add 4/12 and 84/70, Solve 4/12 + 1 14/70 as a fraction

Add 4/12 and 84/70

1^st number: 4/12, 2^nd number: 1 14/70

4/12 + 84/70 is 23/15.

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,
4/12 = 4 × 35/12 × 35 = 140/420
Likewise, for the 2nd fraction, since 70 × 6 = 420,
84/70 = 84 × 6/70 × 6 = 504/420
Add the two like fractions:
140/420 + 504/420 = 140 + 504/420 = 644/420
644/420 simplified gives 23/15
So, 4/12 + 84/70 = 23/15
In mixed form: 18/15

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