Add 2/12 and 90/70, Solve 2/12 + 1 20/70 as a fraction

Add 2/12 and 90/70

1^st number: 2/12, 2^nd number: 1 20/70

2/12 + 90/70 is 61/42.

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,
2/12 = 2 × 35/12 × 35 = 70/420
Likewise, for the 2nd fraction, since 70 × 6 = 420,
90/70 = 90 × 6/70 × 6 = 540/420
Add the two like fractions:
70/420 + 540/420 = 70 + 540/420 = 610/420
610/420 simplified gives 61/42
So, 2/12 + 90/70 = 61/42
In mixed form: 119/42

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