Add 15/9 and 10/70, Solve 1 6/9 + 10/70 as a fraction

Add 15/9 and 10/70

1^st number: 1 6/9, 2^nd number: 10/70

15/9 + 10/70 is 38/21.

Find the least common denominator or LCM of the two denominators:
LCM of 9 and 70 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 9 × 70 = 630,
15/9 = 15 × 70/9 × 70 = 1050/630
Likewise, for the 2nd fraction, since 70 × 9 = 630,
10/70 = 10 × 9/70 × 9 = 90/630
Add the two like fractions:
1050/630 + 90/630 = 1050 + 90/630 = 1140/630
1140/630 simplified gives 38/21
So, 15/9 + 10/70 = 38/21
In mixed form: 117/21

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