Answers

Add 64/84 and 18/72

64/84 + 18/72 is 85/84.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 72 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 84 × 6 = 504,
   64/84 = 64 × 6/84 × 6 = 384/504
3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
   18/72 = 18 × 7/72 × 7 = 126/504
4. Add the two like fractions:
   384/504 + 126/504 = 384 + 126/504 = 510/504
5. 510/504 simplified gives 85/84
6. So, 64/84 + 18/72 = 85/84
   In mixed form: 11/84

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