Add 18/40 and 12/9
1st number: 18/40, 2nd number: 1 3/9
18/40 + 12/9 is 107/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 9 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
18/40 = 18 × 9/40 × 9 = 162/360 - Likewise, for the 2nd fraction, since 9 × 40 = 360,
12/9 = 12 × 40/9 × 40 = 480/360 - Add the two like fractions:
162/360 + 480/360 = 162 + 480/360 = 642/360 - 642/360 simplified gives 107/60
- So, 18/40 + 12/9 = 107/60
In mixed form: 147/60
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