Answers

Add 90/40 and 90/9

1^st number: 2 10/40, 2^nd number: 10 0/9

90/40 + 90/9 is 49/4.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 9 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 40 × 9 = 360,
   90/40 = 90 × 9/40 × 9 = 810/360
3. Likewise, for the 2nd fraction, since 9 × 40 = 360,
   90/9 = 90 × 40/9 × 40 = 3600/360
4. Add the two like fractions:
   810/360 + 3600/360 = 810 + 3600/360 = 4410/360
5. 4410/360 simplified gives 49/4
6. So, 90/40 + 90/9 = 49/4
   In mixed form: 121/4

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