Add 21/24 and 28/80
21/24 + 28/80 is 49/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 24 × 10 = 240,
21/24 = 21 × 10/24 × 10 = 210/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
28/80 = 28 × 3/80 × 3 = 84/240 - Add the two like fractions:
210/240 + 84/240 = 210 + 84/240 = 294/240 - 294/240 simplified gives 49/40
- So, 21/24 + 28/80 = 49/40
In mixed form: 19/40
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