Add 45/5 and 80/90
1st number: 9 0/5, 2nd number: 80/90
45/5 + 80/90 is 89/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 5 × 18 = 90,
45/5 = 45 × 18/5 × 18 = 810/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
80/90 = 80 × 1/90 × 1 = 80/90 - Add the two like fractions:
810/90 + 80/90 = 810 + 80/90 = 890/90 - 890/90 simplified gives 89/9
- So, 45/5 + 80/90 = 89/9
In mixed form: 98/9
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