Add 80/12 and 45/7
1st number: 6 8/12, 2nd number: 6 3/7
80/12 + 45/7 is 275/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 7 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
80/12 = 80 × 7/12 × 7 = 560/84 - Likewise, for the 2nd fraction, since 7 × 12 = 84,
45/7 = 45 × 12/7 × 12 = 540/84 - Add the two like fractions:
560/84 + 540/84 = 560 + 540/84 = 1100/84 - 1100/84 simplified gives 275/21
- So, 80/12 + 45/7 = 275/21
In mixed form: 132/21
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