Add 21/18 and 70/28
1st number: 1 3/18, 2nd number: 2 14/28
21/18 + 70/28 is 11/3.
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,
21/18 = 21 × 14/18 × 14 = 294/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
70/28 = 70 × 9/28 × 9 = 630/252 - Add the two like fractions:
294/252 + 630/252 = 294 + 630/252 = 924/252 - 924/252 simplified gives 11/3
- So, 21/18 + 70/28 = 11/3
In mixed form: 32/3
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