Add 20/32 and 30/81
20/32 + 30/81 is 215/216.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 81 is 2592
Next, find the equivalent fraction of both fractional numbers with denominator 2592 - For the 1st fraction, since 32 × 81 = 2592,
20/32 = 20 × 81/32 × 81 = 1620/2592 - Likewise, for the 2nd fraction, since 81 × 32 = 2592,
30/81 = 30 × 32/81 × 32 = 960/2592 - Add the two like fractions:
1620/2592 + 960/2592 = 1620 + 960/2592 = 2580/2592 - 2580/2592 simplified gives 215/216
- So, 20/32 + 30/81 = 215/216
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