Answers

Add 90/50 and 72/40

1^st number: 1 40/50, 2^nd number: 1 32/40

90/50 + 72/40 is 18/5.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 50 and 40 is 200
   
   Next, find the equivalent fraction of both fractional numbers with denominator 200
2. For the 1st fraction, since 50 × 4 = 200,
   90/50 = 90 × 4/50 × 4 = 360/200
3. Likewise, for the 2nd fraction, since 40 × 5 = 200,
   72/40 = 72 × 5/40 × 5 = 360/200
4. Add the two like fractions:
   360/200 + 360/200 = 360 + 360/200 = 720/200
5. 720/200 simplified gives 18/5
6. So, 90/50 + 72/40 = 18/5
   In mixed form: 33/5

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