Add 5/4 and 80/90
1st number: 1 1/4, 2nd number: 80/90
5/4 + 80/90 is 77/36.
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,
5/4 = 5 × 45/4 × 45 = 225/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
80/90 = 80 × 2/90 × 2 = 160/180 - Add the two like fractions:
225/180 + 160/180 = 225 + 160/180 = 385/180 - 385/180 simplified gives 77/36
- So, 5/4 + 80/90 = 77/36
In mixed form: 25/36
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