Add 30/18 and 84/70
1st number: 1 12/18, 2nd number: 1 14/70
30/18 + 84/70 is 43/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 18 × 35 = 630,
30/18 = 30 × 35/18 × 35 = 1050/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
84/70 = 84 × 9/70 × 9 = 756/630 - Add the two like fractions:
1050/630 + 756/630 = 1050 + 756/630 = 1806/630 - 1806/630 simplified gives 43/15
- So, 30/18 + 84/70 = 43/15
In mixed form: 213/15
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