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Add 81/90 and 2/7

81/90 + 2/7 is 83/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 7 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 90 × 7 = 630,
    81/90 = 81 × 7/90 × 7 = 567/630
  3. Likewise, for the 2nd fraction, since 7 × 90 = 630,
    2/7 = 2 × 90/7 × 90 = 180/630
  4. Add the two like fractions:
    567/630 + 180/630 = 567 + 180/630 = 747/630
  5. 747/630 simplified gives 83/70
  6. So, 81/90 + 2/7 = 83/70
    In mixed form: 113/70

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