Answers

Add 90/98 and 20/4

1^st number: 90/98, 2^nd number: 5 0/4

90/98 + 20/4 is 290/49.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 98 and 4 is 196
   
   Next, find the equivalent fraction of both fractional numbers with denominator 196
2. For the 1st fraction, since 98 × 2 = 196,
   90/98 = 90 × 2/98 × 2 = 180/196
3. Likewise, for the 2nd fraction, since 4 × 49 = 196,
   20/4 = 20 × 49/4 × 49 = 980/196
4. Add the two like fractions:
   180/196 + 980/196 = 180 + 980/196 = 1160/196
5. 1160/196 simplified gives 290/49
6. So, 90/98 + 20/4 = 290/49
   In mixed form: 545/49

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