Add 70/40 and 70/81
1st number: 1 30/40, 2nd number: 70/81
70/40 + 70/81 is 847/324.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 81 is 3240
Next, find the equivalent fraction of both fractional numbers with denominator 3240 - For the 1st fraction, since 40 × 81 = 3240,
70/40 = 70 × 81/40 × 81 = 5670/3240 - Likewise, for the 2nd fraction, since 81 × 40 = 3240,
70/81 = 70 × 40/81 × 40 = 2800/3240 - Add the two like fractions:
5670/3240 + 2800/3240 = 5670 + 2800/3240 = 8470/3240 - 8470/3240 simplified gives 847/324
- So, 70/40 + 70/81 = 847/324
In mixed form: 2199/324
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