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Add 8/21 and 98/40

1st number: 8/21, 2nd number: 2 18/40

8/21 + 98/40 is 1189/420.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 40 is 840

    Next, find the equivalent fraction of both fractional numbers with denominator 840
  2. For the 1st fraction, since 21 × 40 = 840,
    8/21 = 8 × 40/21 × 40 = 320/840
  3. Likewise, for the 2nd fraction, since 40 × 21 = 840,
    98/40 = 98 × 21/40 × 21 = 2058/840
  4. Add the two like fractions:
    320/840 + 2058/840 = 320 + 2058/840 = 2378/840
  5. 2378/840 simplified gives 1189/420
  6. So, 8/21 + 98/40 = 1189/420
    In mixed form: 2349/420

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