Answers

Add 30/56 and 90/21

1^st number: 30/56, 2^nd number: 4 6/21

30/56 + 90/21 is 135/28.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 21 is 168
   
   Next, find the equivalent fraction of both fractional numbers with denominator 168
2. For the 1st fraction, since 56 × 3 = 168,
   30/56 = 30 × 3/56 × 3 = 90/168
3. Likewise, for the 2nd fraction, since 21 × 8 = 168,
   90/21 = 90 × 8/21 × 8 = 720/168
4. Add the two like fractions:
   90/168 + 720/168 = 90 + 720/168 = 810/168
5. 810/168 simplified gives 135/28
6. So, 30/56 + 90/21 = 135/28
   In mixed form: 423/28

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