Answers

Add 75/72 and 3/90

1^st number: 1 3/72, 2^nd number: 3/90

75/72 + 3/90 is 43/40.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 90 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 72 × 5 = 360,
   75/72 = 75 × 5/72 × 5 = 375/360
3. Likewise, for the 2nd fraction, since 90 × 4 = 360,
   3/90 = 3 × 4/90 × 4 = 12/360
4. Add the two like fractions:
   375/360 + 12/360 = 375 + 12/360 = 387/360
5. 387/360 simplified gives 43/40
6. So, 75/72 + 3/90 = 43/40
   In mixed form: 13/40

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