Add 45/80 and 20/9
1st number: 45/80, 2nd number: 2 2/9
45/80 + 20/9 is 401/144.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 9 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
45/80 = 45 × 9/80 × 9 = 405/720 - Likewise, for the 2nd fraction, since 9 × 80 = 720,
20/9 = 20 × 80/9 × 80 = 1600/720 - Add the two like fractions:
405/720 + 1600/720 = 405 + 1600/720 = 2005/720 - 2005/720 simplified gives 401/144
- So, 45/80 + 20/9 = 401/144
In mixed form: 2113/144
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