Add 56/81 and 12/90
56/81 + 12/90 is 334/405.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 90 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 81 × 10 = 810,
56/81 = 56 × 10/81 × 10 = 560/810 - Likewise, for the 2nd fraction, since 90 × 9 = 810,
12/90 = 12 × 9/90 × 9 = 108/810 - Add the two like fractions:
560/810 + 108/810 = 560 + 108/810 = 668/810 - 668/810 simplified gives 334/405
- So, 56/81 + 12/90 = 334/405
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