Add 70/18 and 21/84
1st number: 3 16/18, 2nd number: 21/84
70/18 + 21/84 is 149/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 84 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 84 × 3 = 252,
21/84 = 21 × 3/84 × 3 = 63/252 - Add the two like fractions:
980/252 + 63/252 = 980 + 63/252 = 1043/252 - 1043/252 simplified gives 149/36
- So, 70/18 + 21/84 = 149/36
In mixed form: 45/36
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