Add 80/24 and 45/21
1st number: 3 8/24, 2nd number: 2 3/21
80/24 + 45/21 is 115/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 21 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 24 × 7 = 168,
80/24 = 80 × 7/24 × 7 = 560/168 - Likewise, for the 2nd fraction, since 21 × 8 = 168,
45/21 = 45 × 8/21 × 8 = 360/168 - Add the two like fractions:
560/168 + 360/168 = 560 + 360/168 = 920/168 - 920/168 simplified gives 115/21
- So, 80/24 + 45/21 = 115/21
In mixed form: 510/21
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