Answers

Add 72/40 and 30/80

1^st number: 1 32/40, 2^nd number: 30/80

72/40 + 30/80 is 87/40.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 80 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 40 × 2 = 80,
   72/40 = 72 × 2/40 × 2 = 144/80
3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
   30/80 = 30 × 1/80 × 1 = 30/80
4. Add the two like fractions:
   144/80 + 30/80 = 144 + 30/80 = 174/80
5. 174/80 simplified gives 87/40
6. So, 72/40 + 30/80 = 87/40
   In mixed form: 27/40

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