Answers

Add 21/72 and 96/30

1^st number: 21/72, 2^nd number: 3 6/30

21/72 + 96/30 is 419/120.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 30 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 72 × 5 = 360,
   21/72 = 21 × 5/72 × 5 = 105/360
3. Likewise, for the 2nd fraction, since 30 × 12 = 360,
   96/30 = 96 × 12/30 × 12 = 1152/360
4. Add the two like fractions:
   105/360 + 1152/360 = 105 + 1152/360 = 1257/360
5. 1257/360 simplified gives 419/120
6. So, 21/72 + 96/30 = 419/120
   In mixed form: 359/120

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