Add 7/70 and 84/18, Solve 7/70 + 4 12/18 as a fraction

Add 7/70 and 84/18

1^st number: 7/70, 2^nd number: 4 12/18

7/70 + 84/18 is 143/30.

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,
7/70 = 7 × 9/70 × 9 = 63/630
Likewise, for the 2nd fraction, since 18 × 35 = 630,
84/18 = 84 × 35/18 × 35 = 2940/630
Add the two like fractions:
63/630 + 2940/630 = 63 + 2940/630 = 3003/630
3003/630 simplified gives 143/30
So, 7/70 + 84/18 = 143/30
In mixed form: 423/30

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