Add 5/20 and 81/18
1st number: 5/20, 2nd number: 4 9/18
5/20 + 81/18 is 19/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 18 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
5/20 = 5 × 9/20 × 9 = 45/180 - Likewise, for the 2nd fraction, since 18 × 10 = 180,
81/18 = 81 × 10/18 × 10 = 810/180 - Add the two like fractions:
45/180 + 810/180 = 45 + 810/180 = 855/180 - 855/180 simplified gives 19/4
- So, 5/20 + 81/18 = 19/4
In mixed form: 43/4
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