Add 45/9 and 90/20
1st number: 5 0/9, 2nd number: 4 10/20
45/9 + 90/20 is 19/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 9 × 20 = 180,
45/9 = 45 × 20/9 × 20 = 900/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
90/20 = 90 × 9/20 × 9 = 810/180 - Add the two like fractions:
900/180 + 810/180 = 900 + 810/180 = 1710/180 - 1710/180 simplified gives 19/2
- So, 45/9 + 90/20 = 19/2
In mixed form: 91/2
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