Add 90/9 and 45/20
1st number: 10 0/9, 2nd number: 2 5/20
90/9 + 45/20 is 49/4.
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,
90/9 = 90 × 20/9 × 20 = 1800/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
45/20 = 45 × 9/20 × 9 = 405/180 - Add the two like fractions:
1800/180 + 405/180 = 1800 + 405/180 = 2205/180 - 2205/180 simplified gives 49/4
- So, 90/9 + 45/20 = 49/4
In mixed form: 121/4
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