Add 12/40 and 16/81
12/40 + 16/81 is 403/810.
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,
12/40 = 12 × 81/40 × 81 = 972/3240 - Likewise, for the 2nd fraction, since 81 × 40 = 3240,
16/81 = 16 × 40/81 × 40 = 640/3240 - Add the two like fractions:
972/3240 + 640/3240 = 972 + 640/3240 = 1612/3240 - 1612/3240 simplified gives 403/810
- So, 12/40 + 16/81 = 403/810
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