Add 80/70 and 3/18, Solve 1 10/70 + 3/18 as a fraction

Add 80/70 and 3/18

1^st number: 1 10/70, 2^nd number: 3/18

80/70 + 3/18 is 55/42.

Find the least common denominator or LCM of the two denominators:
LCM of 70 and 18 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 70 × 9 = 630,
80/70 = 80 × 9/70 × 9 = 720/630
Likewise, for the 2nd fraction, since 18 × 35 = 630,
3/18 = 3 × 35/18 × 35 = 105/630
Add the two like fractions:
720/630 + 105/630 = 720 + 105/630 = 825/630
825/630 simplified gives 55/42
So, 80/70 + 3/18 = 55/42
In mixed form: 113/42

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