Add 70/12 and 80/14
1st number: 5 10/12, 2nd number: 5 10/14
70/12 + 80/14 is 485/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 14 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
70/12 = 70 × 7/12 × 7 = 490/84 - Likewise, for the 2nd fraction, since 14 × 6 = 84,
80/14 = 80 × 6/14 × 6 = 480/84 - Add the two like fractions:
490/84 + 480/84 = 490 + 480/84 = 970/84 - 970/84 simplified gives 485/42
- So, 70/12 + 80/14 = 485/42
In mixed form: 1123/42
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