Add 90/80 and 1/18
1st number: 1 10/80, 2nd number: 1/18
90/80 + 1/18 is 85/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 18 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
90/80 = 90 × 9/80 × 9 = 810/720 - Likewise, for the 2nd fraction, since 18 × 40 = 720,
1/18 = 1 × 40/18 × 40 = 40/720 - Add the two like fractions:
810/720 + 40/720 = 810 + 40/720 = 850/720 - 850/720 simplified gives 85/72
- So, 90/80 + 1/18 = 85/72
In mixed form: 113/72
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