Answers

Add 90/40 and 40/30

1^st number: 2 10/40, 2^nd number: 1 10/30

90/40 + 40/30 is 43/12.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 30 is 120
   
   Next, find the equivalent fraction of both fractional numbers with denominator 120
2. For the 1st fraction, since 40 × 3 = 120,
   90/40 = 90 × 3/40 × 3 = 270/120
3. Likewise, for the 2nd fraction, since 30 × 4 = 120,
   40/30 = 40 × 4/30 × 4 = 160/120
4. Add the two like fractions:
   270/120 + 160/120 = 270 + 160/120 = 430/120
5. 430/120 simplified gives 43/12
6. So, 90/40 + 40/30 = 43/12
   In mixed form: 37/12

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