Answers

Add 45/40 and 40/90

1^st number: 1 5/40, 2^nd number: 40/90

45/40 + 40/90 is 113/72.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 90 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 40 × 9 = 360,
   45/40 = 45 × 9/40 × 9 = 405/360
3. Likewise, for the 2nd fraction, since 90 × 4 = 360,
   40/90 = 40 × 4/90 × 4 = 160/360
4. Add the two like fractions:
   405/360 + 160/360 = 405 + 160/360 = 565/360
5. 565/360 simplified gives 113/72
6. So, 45/40 + 40/90 = 113/72
   In mixed form: 141/72

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