Add 12/10 and 40/81
1st number: 1 2/10, 2nd number: 40/81
12/10 + 40/81 is 686/405.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 81 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 10 × 81 = 810,
12/10 = 12 × 81/10 × 81 = 972/810 - Likewise, for the 2nd fraction, since 81 × 10 = 810,
40/81 = 40 × 10/81 × 10 = 400/810 - Add the two like fractions:
972/810 + 400/810 = 972 + 400/810 = 1372/810 - 1372/810 simplified gives 686/405
- So, 12/10 + 40/81 = 686/405
In mixed form: 1281/405
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