Add 90/36 and 20/80
1st number: 2 18/36, 2nd number: 20/80
90/36 + 20/80 is 11/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 36 × 20 = 720,
90/36 = 90 × 20/36 × 20 = 1800/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
20/80 = 20 × 9/80 × 9 = 180/720 - Add the two like fractions:
1800/720 + 180/720 = 1800 + 180/720 = 1980/720 - 1980/720 simplified gives 11/4
- So, 90/36 + 20/80 = 11/4
In mixed form: 23/4
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