Add 70/84 and 20/18
1st number: 70/84, 2nd number: 1 2/18
70/84 + 20/18 is 35/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 18 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 84 × 3 = 252,
70/84 = 70 × 3/84 × 3 = 210/252 - Likewise, for the 2nd fraction, since 18 × 14 = 252,
20/18 = 20 × 14/18 × 14 = 280/252 - Add the two like fractions:
210/252 + 280/252 = 210 + 280/252 = 490/252 - 490/252 simplified gives 35/18
- So, 70/84 + 20/18 = 35/18
In mixed form: 117/18
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