Answers

Add 42/54 and 63/8

1^st number: 42/54, 2^nd number: 7 7/8

42/54 + 63/8 is 623/72.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 8 is 216
   
   Next, find the equivalent fraction of both fractional numbers with denominator 216
2. For the 1st fraction, since 54 × 4 = 216,
   42/54 = 42 × 4/54 × 4 = 168/216
3. Likewise, for the 2nd fraction, since 8 × 27 = 216,
   63/8 = 63 × 27/8 × 27 = 1701/216
4. Add the two like fractions:
   168/216 + 1701/216 = 168 + 1701/216 = 1869/216
5. 1869/216 simplified gives 623/72
6. So, 42/54 + 63/8 = 623/72
   In mixed form: 847/72

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