Add 18/40 and 28/45
18/40 + 28/45 is 193/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 45 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 45 × 8 = 360,
28/45 = 28 × 8/45 × 8 = 224/360 - Add the two like fractions:
162/360 + 224/360 = 162 + 224/360 = 386/360 - 386/360 simplified gives 193/180
- So, 18/40 + 28/45 = 193/180
In mixed form: 113/180
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