Add 21/14 and 70/18
1st number: 1 7/14, 2nd number: 3 16/18
21/14 + 70/18 is 97/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 14 × 9 = 126,
21/14 = 21 × 9/14 × 9 = 189/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
70/18 = 70 × 7/18 × 7 = 490/126 - Add the two like fractions:
189/126 + 490/126 = 189 + 490/126 = 679/126 - 679/126 simplified gives 97/18
- So, 21/14 + 70/18 = 97/18
In mixed form: 57/18
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