Add 4/70 and 45/12, Solve 4/70 + 3 9/12 as a fraction

Add 4/70 and 45/12

1^st number: 4/70, 2^nd number: 3 9/12

4/70 + 45/12 is 533/140.

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,
4/70 = 4 × 6/70 × 6 = 24/420
Likewise, for the 2nd fraction, since 12 × 35 = 420,
45/12 = 45 × 35/12 × 35 = 1575/420
Add the two like fractions:
24/420 + 1575/420 = 24 + 1575/420 = 1599/420
1599/420 simplified gives 533/140
So, 4/70 + 45/12 = 533/140
In mixed form: 3113/140

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