Add 80/21 and 18/56
1st number: 3 17/21, 2nd number: 18/56
80/21 + 18/56 is 347/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 21 × 8 = 168,
80/21 = 80 × 8/21 × 8 = 640/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
18/56 = 18 × 3/56 × 3 = 54/168 - Add the two like fractions:
640/168 + 54/168 = 640 + 54/168 = 694/168 - 694/168 simplified gives 347/84
- So, 80/21 + 18/56 = 347/84
In mixed form: 411/84
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