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Add 27/90 and 40/7

1st number: 27/90, 2nd number: 5 5/7

27/90 + 40/7 is 421/70.

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,
    27/90 = 27 × 7/90 × 7 = 189/630
  3. Likewise, for the 2nd fraction, since 7 × 90 = 630,
    40/7 = 40 × 90/7 × 90 = 3600/630
  4. Add the two like fractions:
    189/630 + 3600/630 = 189 + 3600/630 = 3789/630
  5. 3789/630 simplified gives 421/70
  6. So, 27/90 + 40/7 = 421/70
    In mixed form: 61/70

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