Add 28/40 and 18/9
1st number: 28/40, 2nd number: 2 0/9
28/40 + 18/9 is 27/10.
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,
28/40 = 28 × 9/40 × 9 = 252/360 - Likewise, for the 2nd fraction, since 9 × 40 = 360,
18/9 = 18 × 40/9 × 40 = 720/360 - Add the two like fractions:
252/360 + 720/360 = 252 + 720/360 = 972/360 - 972/360 simplified gives 27/10
- So, 28/40 + 18/9 = 27/10
In mixed form: 27/10
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