Add 30/70 and 84/18
1st number: 30/70, 2nd number: 4 12/18
30/70 + 84/18 is 107/21.
Steps for adding fractions
- 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,
30/70 = 30 × 9/70 × 9 = 270/630 - Likewise, for the 2nd fraction, since 18 × 35 = 630,
84/18 = 84 × 35/18 × 35 = 2940/630 - Add the two like fractions:
270/630 + 2940/630 = 270 + 2940/630 = 3210/630 - 3210/630 simplified gives 107/21
- So, 30/70 + 84/18 = 107/21
In mixed form: 52/21
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