Add 80/12 and 81/70
1st number: 6 8/12, 2nd number: 1 11/70
80/12 + 81/70 is 1643/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 70 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 12 × 35 = 420,
80/12 = 80 × 35/12 × 35 = 2800/420 - Likewise, for the 2nd fraction, since 70 × 6 = 420,
81/70 = 81 × 6/70 × 6 = 486/420 - Add the two like fractions:
2800/420 + 486/420 = 2800 + 486/420 = 3286/420 - 3286/420 simplified gives 1643/210
- So, 80/12 + 81/70 = 1643/210
In mixed form: 7173/210
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