Add 90/9 and 42/20
1st number: 10 0/9, 2nd number: 2 2/20
90/9 + 42/20 is 121/10.
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,
42/20 = 42 × 9/20 × 9 = 378/180 - Add the two like fractions:
1800/180 + 378/180 = 1800 + 378/180 = 2178/180 - 2178/180 simplified gives 121/10
- So, 90/9 + 42/20 = 121/10
In mixed form: 121/10
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