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Add 70/18 and 12/40

1st number: 3 16/18, 2nd number: 12/40

70/18 + 12/40 is 377/90.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 40 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 18 × 20 = 360,
    70/18 = 70 × 20/18 × 20 = 1400/360
  3. Likewise, for the 2nd fraction, since 40 × 9 = 360,
    12/40 = 12 × 9/40 × 9 = 108/360
  4. Add the two like fractions:
    1400/360 + 108/360 = 1400 + 108/360 = 1508/360
  5. 1508/360 simplified gives 377/90
  6. So, 70/18 + 12/40 = 377/90
    In mixed form: 417/90

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