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Add 90/28 and 18/40

1st number: 3 6/28, 2nd number: 18/40

90/28 + 18/40 is 513/140.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 40 is 280

    Next, find the equivalent fraction of both fractional numbers with denominator 280
  2. For the 1st fraction, since 28 × 10 = 280,
    90/28 = 90 × 10/28 × 10 = 900/280
  3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
    18/40 = 18 × 7/40 × 7 = 126/280
  4. Add the two like fractions:
    900/280 + 126/280 = 900 + 126/280 = 1026/280
  5. 1026/280 simplified gives 513/140
  6. So, 90/28 + 18/40 = 513/140
    In mixed form: 393/140

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