Answers

Add 4/32 and 42/81

4/32 + 42/81 is 139/216.

Steps for adding fractions

1. 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
2. For the 1st fraction, since 32 × 81 = 2592,
   4/32 = 4 × 81/32 × 81 = 324/2592
3. Likewise, for the 2nd fraction, since 81 × 32 = 2592,
   42/81 = 42 × 32/81 × 32 = 1344/2592
4. Add the two like fractions:
   324/2592 + 1344/2592 = 324 + 1344/2592 = 1668/2592
5. 1668/2592 simplified gives 139/216
6. So, 4/32 + 42/81 = 139/216

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