Answers

Add 90/60 and 18/40

1^st number: 1 30/60, 2^nd number: 18/40

90/60 + 18/40 is 39/20.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 60 and 40 is 120
   
   Next, find the equivalent fraction of both fractional numbers with denominator 120
2. For the 1st fraction, since 60 × 2 = 120,
   90/60 = 90 × 2/60 × 2 = 180/120
3. Likewise, for the 2nd fraction, since 40 × 3 = 120,
   18/40 = 18 × 3/40 × 3 = 54/120
4. Add the two like fractions:
   180/120 + 54/120 = 180 + 54/120 = 234/120
5. 234/120 simplified gives 39/20
6. So, 90/60 + 18/40 = 39/20
   In mixed form: 119/20

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