Add 81/9 and 42/5
1st number: 9 0/9, 2nd number: 8 2/5
81/9 + 42/5 is 87/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 5 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 9 × 5 = 45,
81/9 = 81 × 5/9 × 5 = 405/45 - Likewise, for the 2nd fraction, since 5 × 9 = 45,
42/5 = 42 × 9/5 × 9 = 378/45 - Add the two like fractions:
405/45 + 378/45 = 405 + 378/45 = 783/45 - 783/45 simplified gives 87/5
- So, 81/9 + 42/5 = 87/5
In mixed form: 172/5
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