Add 70/84 and 30/18
1st number: 70/84, 2nd number: 1 12/18
70/84 + 30/18 is 5/2.
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,
30/18 = 30 × 14/18 × 14 = 420/252 - Add the two like fractions:
210/252 + 420/252 = 210 + 420/252 = 630/252 - 630/252 simplified gives 5/2
- So, 70/84 + 30/18 = 5/2
In mixed form: 21/2
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