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Add 21/98 and 48/90

21/98 + 48/90 is 157/210.

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,
    21/98 = 21 × 45/98 × 45 = 945/4410
  3. Likewise, for the 2nd fraction, since 90 × 49 = 4410,
    48/90 = 48 × 49/90 × 49 = 2352/4410
  4. Add the two like fractions:
    945/4410 + 2352/4410 = 945 + 2352/4410 = 3297/4410
  5. 3297/4410 simplified gives 157/210
  6. So, 21/98 + 48/90 = 157/210

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