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Add 40/7 and 21/90

1st number: 5 5/7, 2nd number: 21/90

40/7 + 21/90 is 1249/210.

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,
    40/7 = 40 × 90/7 × 90 = 3600/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    21/90 = 21 × 7/90 × 7 = 147/630
  4. Add the two like fractions:
    3600/630 + 147/630 = 3600 + 147/630 = 3747/630
  5. 3747/630 simplified gives 1249/210
  6. So, 40/7 + 21/90 = 1249/210
    In mixed form: 5199/210

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