Add 45/18 and 28/80
1st number: 2 9/18, 2nd number: 28/80
45/18 + 28/80 is 57/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 18 × 40 = 720,
45/18 = 45 × 40/18 × 40 = 1800/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
28/80 = 28 × 9/80 × 9 = 252/720 - Add the two like fractions:
1800/720 + 252/720 = 1800 + 252/720 = 2052/720 - 2052/720 simplified gives 57/20
- So, 45/18 + 28/80 = 57/20
In mixed form: 217/20
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