Add 18/45 and 80/40
1st number: 18/45, 2nd number: 2 0/40
18/45 + 80/40 is 12/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 45 × 8 = 360,
18/45 = 18 × 8/45 × 8 = 144/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
80/40 = 80 × 9/40 × 9 = 720/360 - Add the two like fractions:
144/360 + 720/360 = 144 + 720/360 = 864/360 - 864/360 simplified gives 12/5
- So, 18/45 + 80/40 = 12/5
In mixed form: 22/5
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