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Add 7/15 and 90/28

1st number: 7/15, 2nd number: 3 6/28

7/15 + 90/28 is 773/210.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 28 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 15 × 28 = 420,
    7/15 = 7 × 28/15 × 28 = 196/420
  3. Likewise, for the 2nd fraction, since 28 × 15 = 420,
    90/28 = 90 × 15/28 × 15 = 1350/420
  4. Add the two like fractions:
    196/420 + 1350/420 = 196 + 1350/420 = 1546/420
  5. 1546/420 simplified gives 773/210
  6. So, 7/15 + 90/28 = 773/210
    In mixed form: 3143/210

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