Answers

Add 45/30 and 42/56

1^st number: 1 15/30, 2^nd number: 42/56

45/30 + 42/56 is 9/4.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 56 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 30 × 28 = 840,
   45/30 = 45 × 28/30 × 28 = 1260/840
3. Likewise, for the 2nd fraction, since 56 × 15 = 840,
   42/56 = 42 × 15/56 × 15 = 630/840
4. Add the two like fractions:
   1260/840 + 630/840 = 1260 + 630/840 = 1890/840
5. 1890/840 simplified gives 9/4
6. So, 45/30 + 42/56 = 9/4
   In mixed form: 21/4

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