Add 20/4 and 70/81
1st number: 5 0/4, 2nd number: 70/81
20/4 + 70/81 is 475/81.
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,
70/81 = 70 × 4/81 × 4 = 280/324 - Add the two like fractions:
1620/324 + 280/324 = 1620 + 280/324 = 1900/324 - 1900/324 simplified gives 475/81
- So, 20/4 + 70/81 = 475/81
In mixed form: 570/81
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