Add 70/6 and 80/21
1st number: 11 4/6, 2nd number: 3 17/21
70/6 + 80/21 is 325/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 6 × 7 = 42,
70/6 = 70 × 7/6 × 7 = 490/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
80/21 = 80 × 2/21 × 2 = 160/42 - Add the two like fractions:
490/42 + 160/42 = 490 + 160/42 = 650/42 - 650/42 simplified gives 325/21
- So, 70/6 + 80/21 = 325/21
In mixed form: 1510/21
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