Add 20/16 and 70/81
1st number: 1 4/16, 2nd number: 70/81
20/16 + 70/81 is 685/324.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 81 is 1296
Next, find the equivalent fraction of both fractional numbers with denominator 1296 - For the 1st fraction, since 16 × 81 = 1296,
20/16 = 20 × 81/16 × 81 = 1620/1296 - Likewise, for the 2nd fraction, since 81 × 16 = 1296,
70/81 = 70 × 16/81 × 16 = 1120/1296 - Add the two like fractions:
1620/1296 + 1120/1296 = 1620 + 1120/1296 = 2740/1296 - 2740/1296 simplified gives 685/324
- So, 20/16 + 70/81 = 685/324
In mixed form: 237/324
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