Answers

Add 90/40 and 15/20

1^st number: 2 10/40, 2^nd number: 15/20

90/40 + 15/20 is 3/1.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 20 is 40
   
   Next, find the equivalent fraction of both fractional numbers with denominator 40
2. For the 1st fraction, since 40 × 1 = 40,
   90/40 = 90 × 1/40 × 1 = 90/40
3. Likewise, for the 2nd fraction, since 20 × 2 = 40,
   15/20 = 15 × 2/20 × 2 = 30/40
4. Add the two like fractions:
   90/40 + 30/40 = 90 + 30/40 = 120/40
5. 120/40 simplified gives 3/1
6. So, 90/40 + 15/20 = 3/1

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