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Add 90/40 and 70/28

1st number: 2 10/40, 2nd number: 2 14/28

90/40 + 70/28 is 19/4.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 280
  2. For the 1st fraction, since 40 × 7 = 280,
    90/40 = 90 × 7/40 × 7 = 630/280
  3. Likewise, for the 2nd fraction, since 28 × 10 = 280,
    70/28 = 70 × 10/28 × 10 = 700/280
  4. Add the two like fractions:
    630/280 + 700/280 = 630 + 700/280 = 1330/280
  5. 1330/280 simplified gives 19/4
  6. So, 90/40 + 70/28 = 19/4
    In mixed form: 43/4

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