Answers

Add 42/48 and 63/45

1^st number: 42/48, 2^nd number: 1 18/45

42/48 + 63/45 is 91/40.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 48 and 45 is 720
   
   Next, find the equivalent fraction of both fractional numbers with denominator 720
2. For the 1st fraction, since 48 × 15 = 720,
   42/48 = 42 × 15/48 × 15 = 630/720
3. Likewise, for the 2nd fraction, since 45 × 16 = 720,
   63/45 = 63 × 16/45 × 16 = 1008/720
4. Add the two like fractions:
   630/720 + 1008/720 = 630 + 1008/720 = 1638/720
5. 1638/720 simplified gives 91/40
6. So, 42/48 + 63/45 = 91/40
   In mixed form: 211/40

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