Answers

Add 98/8 and 90/45

1^st number: 12 2/8, 2^nd number: 2 0/45

98/8 + 90/45 is 57/4.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 8 and 45 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 8 × 45 = 360,
   98/8 = 98 × 45/8 × 45 = 4410/360
3. Likewise, for the 2nd fraction, since 45 × 8 = 360,
   90/45 = 90 × 8/45 × 8 = 720/360
4. Add the two like fractions:
   4410/360 + 720/360 = 4410 + 720/360 = 5130/360
5. 5130/360 simplified gives 57/4
6. So, 98/8 + 90/45 = 57/4
   In mixed form: 141/4

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