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Add 70/40 and 4/90

1st number: 1 30/40, 2nd number: 4/90

70/40 + 4/90 is 323/180.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 90 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 40 × 9 = 360,
    70/40 = 70 × 9/40 × 9 = 630/360
  3. Likewise, for the 2nd fraction, since 90 × 4 = 360,
    4/90 = 4 × 4/90 × 4 = 16/360
  4. Add the two like fractions:
    630/360 + 16/360 = 630 + 16/360 = 646/360
  5. 646/360 simplified gives 323/180
  6. So, 70/40 + 4/90 = 323/180
    In mixed form: 1143/180

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