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Add 90/15 and 30/7

1st number: 6 0/15, 2nd number: 4 2/7

90/15 + 30/7 is 72/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 7 is 105

    Next, find the equivalent fraction of both fractional numbers with denominator 105
  2. For the 1st fraction, since 15 × 7 = 105,
    90/15 = 90 × 7/15 × 7 = 630/105
  3. Likewise, for the 2nd fraction, since 7 × 15 = 105,
    30/7 = 30 × 15/7 × 15 = 450/105
  4. Add the two like fractions:
    630/105 + 450/105 = 630 + 450/105 = 1080/105
  5. 1080/105 simplified gives 72/7
  6. So, 90/15 + 30/7 = 72/7
    In mixed form: 102/7

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