Add 80/42 and 15/84
1st number: 1 38/42, 2nd number: 15/84
80/42 + 15/84 is 25/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
80/42 = 80 × 2/42 × 2 = 160/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
15/84 = 15 × 1/84 × 1 = 15/84 - Add the two like fractions:
160/84 + 15/84 = 160 + 15/84 = 175/84 - 175/84 simplified gives 25/12
- So, 80/42 + 15/84 = 25/12
In mixed form: 21/12
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