Answers

Add 72/21 and 35/48

1^st number: 3 9/21, 2^nd number: 35/48

72/21 + 35/48 is 1397/336.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 48 is 336
   
   Next, find the equivalent fraction of both fractional numbers with denominator 336
2. For the 1st fraction, since 21 × 16 = 336,
   72/21 = 72 × 16/21 × 16 = 1152/336
3. Likewise, for the 2nd fraction, since 48 × 7 = 336,
   35/48 = 35 × 7/48 × 7 = 245/336
4. Add the two like fractions:
   1152/336 + 245/336 = 1152 + 245/336 = 1397/336
5. So, 72/21 + 35/48 = 1397/336
   In mixed form: 453/336

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