Answers

Add 63/16 and 42/56

1^st number: 3 15/16, 2^nd number: 42/56

63/16 + 42/56 is 75/16.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 16 and 56 is 112
   
   Next, find the equivalent fraction of both fractional numbers with denominator 112
2. For the 1st fraction, since 16 × 7 = 112,
   63/16 = 63 × 7/16 × 7 = 441/112
3. Likewise, for the 2nd fraction, since 56 × 2 = 112,
   42/56 = 42 × 2/56 × 2 = 84/112
4. Add the two like fractions:
   441/112 + 84/112 = 441 + 84/112 = 525/112
5. 525/112 simplified gives 75/16
6. So, 63/16 + 42/56 = 75/16
   In mixed form: 411/16

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