Add 70/84 and 9/7
1st number: 70/84, 2nd number: 1 2/7
70/84 + 9/7 is 89/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 7 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
70/84 = 70 × 1/84 × 1 = 70/84 - Likewise, for the 2nd fraction, since 7 × 12 = 84,
9/7 = 9 × 12/7 × 12 = 108/84 - Add the two like fractions:
70/84 + 108/84 = 70 + 108/84 = 178/84 - 178/84 simplified gives 89/42
- So, 70/84 + 9/7 = 89/42
In mixed form: 25/42
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