Add 81/10 and 42/20
1st number: 8 1/10, 2nd number: 2 2/20
81/10 + 42/20 is 51/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 10 × 2 = 20,
81/10 = 81 × 2/10 × 2 = 162/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
42/20 = 42 × 1/20 × 1 = 42/20 - Add the two like fractions:
162/20 + 42/20 = 162 + 42/20 = 204/20 - 204/20 simplified gives 51/5
- So, 81/10 + 42/20 = 51/5
In mixed form: 101/5
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