Add 90/20 and 20/18
1st number: 4 10/20, 2nd number: 1 2/18
90/20 + 20/18 is 101/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 18 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
90/20 = 90 × 9/20 × 9 = 810/180 - Likewise, for the 2nd fraction, since 18 × 10 = 180,
20/18 = 20 × 10/18 × 10 = 200/180 - Add the two like fractions:
810/180 + 200/180 = 810 + 200/180 = 1010/180 - 1010/180 simplified gives 101/18
- So, 90/20 + 20/18 = 101/18
In mixed form: 511/18
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