Add 10/90 and 90/80
1st number: 10/90, 2nd number: 1 10/80
10/90 + 90/80 is 89/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 90 × 8 = 720,
10/90 = 10 × 8/90 × 8 = 80/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
90/80 = 90 × 9/80 × 9 = 810/720 - Add the two like fractions:
80/720 + 810/720 = 80 + 810/720 = 890/720 - 890/720 simplified gives 89/72
- So, 10/90 + 90/80 = 89/72
In mixed form: 117/72
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