Add 84/70 and 18/45, Solve 1 14/70 + 18/45 as a fraction

Add 84/70 and 18/45

1^st number: 1 14/70, 2^nd number: 18/45

84/70 + 18/45 is 8/5.

Find the least common denominator or LCM of the two denominators:
LCM of 70 and 45 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 70 × 9 = 630,
84/70 = 84 × 9/70 × 9 = 756/630
Likewise, for the 2nd fraction, since 45 × 14 = 630,
18/45 = 18 × 14/45 × 14 = 252/630
Add the two like fractions:
756/630 + 252/630 = 756 + 252/630 = 1008/630
1008/630 simplified gives 8/5
So, 84/70 + 18/45 = 8/5
In mixed form: 13/5

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