Add 70/18 and 12/28
1st number: 3 16/18, 2nd number: 12/28
70/18 + 12/28 is 272/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 28 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 18 × 14 = 252,
70/18 = 70 × 14/18 × 14 = 980/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
12/28 = 12 × 9/28 × 9 = 108/252 - Add the two like fractions:
980/252 + 108/252 = 980 + 108/252 = 1088/252 - 1088/252 simplified gives 272/63
- So, 70/18 + 12/28 = 272/63
In mixed form: 420/63
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