Add 20/4 and 42/81
1st number: 5 0/4, 2nd number: 42/81
20/4 + 42/81 is 149/27.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 81 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 4 × 81 = 324,
20/4 = 20 × 81/4 × 81 = 1620/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
42/81 = 42 × 4/81 × 4 = 168/324 - Add the two like fractions:
1620/324 + 168/324 = 1620 + 168/324 = 1788/324 - 1788/324 simplified gives 149/27
- So, 20/4 + 42/81 = 149/27
In mixed form: 514/27
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