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Add 90/21 and 10/8

1st number: 4 6/21, 2nd number: 1 2/8

90/21 + 10/8 is 155/28.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 8 is 168

    Next, find the equivalent fraction of both fractional numbers with denominator 168
  2. For the 1st fraction, since 21 × 8 = 168,
    90/21 = 90 × 8/21 × 8 = 720/168
  3. Likewise, for the 2nd fraction, since 8 × 21 = 168,
    10/8 = 10 × 21/8 × 21 = 210/168
  4. Add the two like fractions:
    720/168 + 210/168 = 720 + 210/168 = 930/168
  5. 930/168 simplified gives 155/28
  6. So, 90/21 + 10/8 = 155/28
    In mixed form: 515/28

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