Answers

Add 56/90 and 54/42

1^st number: 56/90, 2^nd number: 1 12/42

56/90 + 54/42 is 601/315.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 42 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 90 × 7 = 630,
   56/90 = 56 × 7/90 × 7 = 392/630
3. Likewise, for the 2nd fraction, since 42 × 15 = 630,
   54/42 = 54 × 15/42 × 15 = 810/630
4. Add the two like fractions:
   392/630 + 810/630 = 392 + 810/630 = 1202/630
5. 1202/630 simplified gives 601/315
6. So, 56/90 + 54/42 = 601/315
   In mixed form: 1286/315

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