Add 40/14 and 80/15
1st number: 2 12/14, 2nd number: 5 5/15
40/14 + 80/15 is 172/21.
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,
40/14 = 40 × 15/14 × 15 = 600/210 - Likewise, for the 2nd fraction, since 15 × 14 = 210,
80/15 = 80 × 14/15 × 14 = 1120/210 - Add the two like fractions:
600/210 + 1120/210 = 600 + 1120/210 = 1720/210 - 1720/210 simplified gives 172/21
- So, 40/14 + 80/15 = 172/21
In mixed form: 84/21
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