Add 20/4 and 45/90
1st number: 5 0/4, 2nd number: 45/90
20/4 + 45/90 is 11/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 4 × 45 = 180,
20/4 = 20 × 45/4 × 45 = 900/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
45/90 = 45 × 2/90 × 2 = 90/180 - Add the two like fractions:
900/180 + 90/180 = 900 + 90/180 = 990/180 - 990/180 simplified gives 11/2
- So, 20/4 + 45/90 = 11/2
In mixed form: 51/2
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