Add 21/8 and 84/80
1st number: 2 5/8, 2nd number: 1 4/80
21/8 + 84/80 is 147/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 8 × 10 = 80,
21/8 = 21 × 10/8 × 10 = 210/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
84/80 = 84 × 1/80 × 1 = 84/80 - Add the two like fractions:
210/80 + 84/80 = 210 + 84/80 = 294/80 - 294/80 simplified gives 147/40
- So, 21/8 + 84/80 = 147/40
In mixed form: 327/40
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