Add 10/12 and 80/21
1st number: 10/12, 2nd number: 3 17/21
10/12 + 80/21 is 65/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 21 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
10/12 = 10 × 7/12 × 7 = 70/84 - Likewise, for the 2nd fraction, since 21 × 4 = 84,
80/21 = 80 × 4/21 × 4 = 320/84 - Add the two like fractions:
70/84 + 320/84 = 70 + 320/84 = 390/84 - 390/84 simplified gives 65/14
- So, 10/12 + 80/21 = 65/14
In mixed form: 49/14
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