Answers

Add 98/72 and 9/90

1^st number: 1 26/72, 2^nd number: 9/90

98/72 + 9/90 is 263/180.

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,
   9/90 = 9 × 4/90 × 4 = 36/360
4. Add the two like fractions:
   490/360 + 36/360 = 490 + 36/360 = 526/360
5. 526/360 simplified gives 263/180
6. So, 98/72 + 9/90 = 263/180
   In mixed form: 183/180

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