Answers

Add 42/63 and 56/72

42/63 + 56/72 is 13/9.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 72 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 63 × 8 = 504,
   42/63 = 42 × 8/63 × 8 = 336/504
3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
   56/72 = 56 × 7/72 × 7 = 392/504
4. Add the two like fractions:
   336/504 + 392/504 = 336 + 392/504 = 728/504
5. 728/504 simplified gives 13/9
6. So, 42/63 + 56/72 = 13/9
   In mixed form: 14/9

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