Answers

Add 48/12 and 75/21

1^st number: 4 0/12, 2^nd number: 3 12/21

48/12 + 75/21 is 53/7.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 21 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 12 × 7 = 84,
   48/12 = 48 × 7/12 × 7 = 336/84
3. Likewise, for the 2nd fraction, since 21 × 4 = 84,
   75/21 = 75 × 4/21 × 4 = 300/84
4. Add the two like fractions:
   336/84 + 300/84 = 336 + 300/84 = 636/84
5. 636/84 simplified gives 53/7
6. So, 48/12 + 75/21 = 53/7
   In mixed form: 74/7

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