Add 21/2 and 84/80
1st number: 10 1/2, 2nd number: 1 4/80
21/2 + 84/80 is 231/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 2 × 40 = 80,
21/2 = 21 × 40/2 × 40 = 840/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
84/80 = 84 × 1/80 × 1 = 84/80 - Add the two like fractions:
840/80 + 84/80 = 840 + 84/80 = 924/80 - 924/80 simplified gives 231/20
- So, 21/2 + 84/80 = 231/20
In mixed form: 1111/20
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