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Add 21/56 and 90/98

21/56 + 90/98 is 507/392.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 98 is 392

    Next, find the equivalent fraction of both fractional numbers with denominator 392
  2. For the 1st fraction, since 56 × 7 = 392,
    21/56 = 21 × 7/56 × 7 = 147/392
  3. Likewise, for the 2nd fraction, since 98 × 4 = 392,
    90/98 = 90 × 4/98 × 4 = 360/392
  4. Add the two like fractions:
    147/392 + 360/392 = 147 + 360/392 = 507/392
  5. So, 21/56 + 90/98 = 507/392
    In mixed form: 1115/392

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