Add 80/40 and 20/18
1st number: 2 0/40, 2nd number: 1 2/18
80/40 + 20/18 is 28/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 18 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
80/40 = 80 × 9/40 × 9 = 720/360 - Likewise, for the 2nd fraction, since 18 × 20 = 360,
20/18 = 20 × 20/18 × 20 = 400/360 - Add the two like fractions:
720/360 + 400/360 = 720 + 400/360 = 1120/360 - 1120/360 simplified gives 28/9
- So, 80/40 + 20/18 = 28/9
In mixed form: 31/9
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