Answers

Add 24/21 and 72/45

1^st number: 1 3/21, 2^nd number: 1 27/45

24/21 + 72/45 is 96/35.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 45 is 315
   
   Next, find the equivalent fraction of both fractional numbers with denominator 315
2. For the 1st fraction, since 21 × 15 = 315,
   24/21 = 24 × 15/21 × 15 = 360/315
3. Likewise, for the 2nd fraction, since 45 × 7 = 315,
   72/45 = 72 × 7/45 × 7 = 504/315
4. Add the two like fractions:
   360/315 + 504/315 = 360 + 504/315 = 864/315
5. 864/315 simplified gives 96/35
6. So, 24/21 + 72/45 = 96/35
   In mixed form: 226/35

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