Add 3/10 and 84/7, Solve 3/10 + 12 0/7 as a fraction

Add 3/10 and 84/7

1^st number: 3/10, 2^nd number: 12 0/7

3/10 + 84/7 is 123/10.

Find the least common denominator or LCM of the two denominators:
LCM of 10 and 7 is 70

Next, find the equivalent fraction of both fractional numbers with denominator 70
For the 1st fraction, since 10 × 7 = 70,
3/10 = 3 × 7/10 × 7 = 21/70
Likewise, for the 2nd fraction, since 7 × 10 = 70,
84/7 = 84 × 10/7 × 10 = 840/70
Add the two like fractions:
21/70 + 840/70 = 21 + 840/70 = 861/70
861/70 simplified gives 123/10
So, 3/10 + 84/7 = 123/10
In mixed form: 123/10

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