Add 64/9 and 90/20
1st number: 7 1/9, 2nd number: 4 10/20
64/9 + 90/20 is 209/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 9 × 20 = 180,
64/9 = 64 × 20/9 × 20 = 1280/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
90/20 = 90 × 9/20 × 9 = 810/180 - Add the two like fractions:
1280/180 + 810/180 = 1280 + 810/180 = 2090/180 - 2090/180 simplified gives 209/18
- So, 64/9 + 90/20 = 209/18
In mixed form: 1111/18
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