Answers

Add 42/56 and 40/63

42/56 + 40/63 is 349/252.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 63 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 56 × 9 = 504,
   42/56 = 42 × 9/56 × 9 = 378/504
3. Likewise, for the 2nd fraction, since 63 × 8 = 504,
   40/63 = 40 × 8/63 × 8 = 320/504
4. Add the two like fractions:
   378/504 + 320/504 = 378 + 320/504 = 698/504
5. 698/504 simplified gives 349/252
6. So, 42/56 + 40/63 = 349/252
   In mixed form: 197/252

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