Add 20/5 and 30/18
1st number: 4 0/5, 2nd number: 1 12/18
20/5 + 30/18 is 17/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 5 × 18 = 90,
20/5 = 20 × 18/5 × 18 = 360/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
30/18 = 30 × 5/18 × 5 = 150/90 - Add the two like fractions:
360/90 + 150/90 = 360 + 150/90 = 510/90 - 510/90 simplified gives 17/3
- So, 20/5 + 30/18 = 17/3
In mixed form: 52/3
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