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Add 90/9 and 42/15

1st number: 10 0/9, 2nd number: 2 12/15

90/9 + 42/15 is 64/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 15 is 45

    Next, find the equivalent fraction of both fractional numbers with denominator 45
  2. For the 1st fraction, since 9 × 5 = 45,
    90/9 = 90 × 5/9 × 5 = 450/45
  3. Likewise, for the 2nd fraction, since 15 × 3 = 45,
    42/15 = 42 × 3/15 × 3 = 126/45
  4. Add the two like fractions:
    450/45 + 126/45 = 450 + 126/45 = 576/45
  5. 576/45 simplified gives 64/5
  6. So, 90/9 + 42/15 = 64/5
    In mixed form: 124/5

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