Add 81/36 and 42/10
1st number: 2 9/36, 2nd number: 4 2/10
81/36 + 42/10 is 129/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 10 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
81/36 = 81 × 5/36 × 5 = 405/180 - Likewise, for the 2nd fraction, since 10 × 18 = 180,
42/10 = 42 × 18/10 × 18 = 756/180 - Add the two like fractions:
405/180 + 756/180 = 405 + 756/180 = 1161/180 - 1161/180 simplified gives 129/20
- So, 81/36 + 42/10 = 129/20
In mixed form: 69/20
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