Add 80/42 and 28/84
1st number: 1 38/42, 2nd number: 28/84
80/42 + 28/84 is 47/21.
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,
28/84 = 28 × 1/84 × 1 = 28/84 - Add the two like fractions:
160/84 + 28/84 = 160 + 28/84 = 188/84 - 188/84 simplified gives 47/21
- So, 80/42 + 28/84 = 47/21
In mixed form: 25/21
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