Add 9/18 and 45/40
1st number: 9/18, 2nd number: 1 5/40
9/18 + 45/40 is 13/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 18 × 20 = 360,
9/18 = 9 × 20/18 × 20 = 180/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
45/40 = 45 × 9/40 × 9 = 405/360 - Add the two like fractions:
180/360 + 405/360 = 180 + 405/360 = 585/360 - 585/360 simplified gives 13/8
- So, 9/18 + 45/40 = 13/8
In mixed form: 15/8
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