Add 45/36 and 80/20
1st number: 1 9/36, 2nd number: 4 0/20
45/36 + 80/20 is 21/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
45/36 = 45 × 5/36 × 5 = 225/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
80/20 = 80 × 9/20 × 9 = 720/180 - Add the two like fractions:
225/180 + 720/180 = 225 + 720/180 = 945/180 - 945/180 simplified gives 21/4
- So, 45/36 + 80/20 = 21/4
In mixed form: 51/4
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