Answers

Add 98/72 and 20/90

1^st number: 1 26/72, 2^nd number: 20/90

98/72 + 20/90 is 19/12.

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,
   98/72 = 98 × 5/72 × 5 = 490/360
3. Likewise, for the 2nd fraction, since 90 × 4 = 360,
   20/90 = 20 × 4/90 × 4 = 80/360
4. Add the two like fractions:
   490/360 + 80/360 = 490 + 80/360 = 570/360
5. 570/360 simplified gives 19/12
6. So, 98/72 + 20/90 = 19/12
   In mixed form: 17/12

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