Add 72/81 and 81/40
1st number: 72/81, 2nd number: 2 1/40
72/81 + 81/40 is 1049/360.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 40 is 3240
Next, find the equivalent fraction of both fractional numbers with denominator 3240 - For the 1st fraction, since 81 × 40 = 3240,
72/81 = 72 × 40/81 × 40 = 2880/3240 - Likewise, for the 2nd fraction, since 40 × 81 = 3240,
81/40 = 81 × 81/40 × 81 = 6561/3240 - Add the two like fractions:
2880/3240 + 6561/3240 = 2880 + 6561/3240 = 9441/3240 - 9441/3240 simplified gives 1049/360
- So, 72/81 + 81/40 = 1049/360
In mixed form: 2329/360
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