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Add 90/30 and 75/21

1st number: 3 0/30, 2nd number: 3 12/21

90/30 + 75/21 is 46/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 21 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 30 × 7 = 210,
    90/30 = 90 × 7/30 × 7 = 630/210
  3. Likewise, for the 2nd fraction, since 21 × 10 = 210,
    75/21 = 75 × 10/21 × 10 = 750/210
  4. Add the two like fractions:
    630/210 + 750/210 = 630 + 750/210 = 1380/210
  5. 1380/210 simplified gives 46/7
  6. So, 90/30 + 75/21 = 46/7
    In mixed form: 64/7

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