Add 27/21 and 70/84
1st number: 1 6/21, 2nd number: 70/84
27/21 + 70/84 is 89/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 21 × 4 = 84,
27/21 = 27 × 4/21 × 4 = 108/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
70/84 = 70 × 1/84 × 1 = 70/84 - Add the two like fractions:
108/84 + 70/84 = 108 + 70/84 = 178/84 - 178/84 simplified gives 89/42
- So, 27/21 + 70/84 = 89/42
In mixed form: 25/42
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