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Add 8/7 and 9/90

1st number: 1 1/7, 2nd number: 9/90

8/7 + 9/90 is 87/70.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 7 × 90 = 630,
    8/7 = 8 × 90/7 × 90 = 720/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    9/90 = 9 × 7/90 × 7 = 63/630
  4. Add the two like fractions:
    720/630 + 63/630 = 720 + 63/630 = 783/630
  5. 783/630 simplified gives 87/70
  6. So, 8/7 + 9/90 = 87/70
    In mixed form: 117/70

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