Add 18/9 and 45/40
1st number: 2 0/9, 2nd number: 1 5/40
18/9 + 45/40 is 25/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 9 × 40 = 360,
18/9 = 18 × 40/9 × 40 = 720/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
45/40 = 45 × 9/40 × 9 = 405/360 - Add the two like fractions:
720/360 + 405/360 = 720 + 405/360 = 1125/360 - 1125/360 simplified gives 25/8
- So, 18/9 + 45/40 = 25/8
In mixed form: 31/8
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