Add 10/70 and 45/12, Solve 10/70 + 3 9/12 as a fraction

Add 10/70 and 45/12

1^st number: 10/70, 2^nd number: 3 9/12

10/70 + 45/12 is 109/28.

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

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 70 × 6 = 420,
10/70 = 10 × 6/70 × 6 = 60/420
Likewise, for the 2nd fraction, since 12 × 35 = 420,
45/12 = 45 × 35/12 × 35 = 1575/420
Add the two like fractions:
60/420 + 1575/420 = 60 + 1575/420 = 1635/420
1635/420 simplified gives 109/28
So, 10/70 + 45/12 = 109/28
In mixed form: 325/28

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