Add 80/14 and 30/15
1st number: 5 10/14, 2nd number: 2 0/15
80/14 + 30/15 is 54/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 15 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 14 × 15 = 210,
80/14 = 80 × 15/14 × 15 = 1200/210 - Likewise, for the 2nd fraction, since 15 × 14 = 210,
30/15 = 30 × 14/15 × 14 = 420/210 - Add the two like fractions:
1200/210 + 420/210 = 1200 + 420/210 = 1620/210 - 1620/210 simplified gives 54/7
- So, 80/14 + 30/15 = 54/7
In mixed form: 75/7
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