Add 12/10 and 45/42, Solve 1 2/10 + 1 3/42 as a fraction

Add 12/10 and 45/42

1^st number: 1 2/10, 2^nd number: 1 3/42

12/10 + 45/42 is 159/70.

Find the least common denominator or LCM of the two denominators:
LCM of 10 and 42 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 10 × 21 = 210,
12/10 = 12 × 21/10 × 21 = 252/210
Likewise, for the 2nd fraction, since 42 × 5 = 210,
45/42 = 45 × 5/42 × 5 = 225/210
Add the two like fractions:
252/210 + 225/210 = 252 + 225/210 = 477/210
477/210 simplified gives 159/70
So, 12/10 + 45/42 = 159/70
In mixed form: 219/70

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