Answers

Add 7/98 and 45/90

7/98 + 45/90 is 4/7.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 98 and 90 is 4410
   
   Next, find the equivalent fraction of both fractional numbers with denominator 4410
2. For the 1st fraction, since 98 × 45 = 4410,
   7/98 = 7 × 45/98 × 45 = 315/4410
3. Likewise, for the 2nd fraction, since 90 × 49 = 4410,
   45/90 = 45 × 49/90 × 49 = 2205/4410
4. Add the two like fractions:
   315/4410 + 2205/4410 = 315 + 2205/4410 = 2520/4410
5. 2520/4410 simplified gives 4/7
6. So, 7/98 + 45/90 = 4/7

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