Answers

Add 56/40 and 9/90

1^st number: 1 16/40, 2^nd number: 9/90

56/40 + 9/90 is 3/2.

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,
   56/40 = 56 × 9/40 × 9 = 504/360
3. Likewise, for the 2nd fraction, since 90 × 4 = 360,
   9/90 = 9 × 4/90 × 4 = 36/360
4. Add the two like fractions:
   504/360 + 36/360 = 504 + 36/360 = 540/360
5. 540/360 simplified gives 3/2
6. So, 56/40 + 9/90 = 3/2
   In mixed form: 11/2

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