Answers

Add 72/80 and 45/24

1^st number: 72/80, 2^nd number: 1 21/24

72/80 + 45/24 is 111/40.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 24 is 240
   
   Next, find the equivalent fraction of both fractional numbers with denominator 240
2. For the 1st fraction, since 80 × 3 = 240,
   72/80 = 72 × 3/80 × 3 = 216/240
3. Likewise, for the 2nd fraction, since 24 × 10 = 240,
   45/24 = 45 × 10/24 × 10 = 450/240
4. Add the two like fractions:
   216/240 + 450/240 = 216 + 450/240 = 666/240
5. 666/240 simplified gives 111/40
6. So, 72/80 + 45/24 = 111/40
   In mixed form: 231/40

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