Answers

Add 7/84 and 56/72

7/84 + 56/72 is 31/36.

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,
   7/84 = 7 × 6/84 × 6 = 42/504
3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
   56/72 = 56 × 7/72 × 7 = 392/504
4. Add the two like fractions:
   42/504 + 392/504 = 42 + 392/504 = 434/504
5. 434/504 simplified gives 31/36
6. So, 7/84 + 56/72 = 31/36

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