Add 70/42 and 15/10, Solve 1 28/42 + 1 5/10 as a fraction

Add 70/42 and 15/10

1^st number: 1 28/42, 2^nd number: 1 5/10

70/42 + 15/10 is 19/6.

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

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 42 × 5 = 210,
70/42 = 70 × 5/42 × 5 = 350/210
Likewise, for the 2nd fraction, since 10 × 21 = 210,
15/10 = 15 × 21/10 × 21 = 315/210
Add the two like fractions:
350/210 + 315/210 = 350 + 315/210 = 665/210
665/210 simplified gives 19/6
So, 70/42 + 15/10 = 19/6
In mixed form: 31/6

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