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Add 36/40 and 42/90

36/40 + 42/90 is 41/30.

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,
    36/40 = 36 × 9/40 × 9 = 324/360
  3. Likewise, for the 2nd fraction, since 90 × 4 = 360,
    42/90 = 42 × 4/90 × 4 = 168/360
  4. Add the two like fractions:
    324/360 + 168/360 = 324 + 168/360 = 492/360
  5. 492/360 simplified gives 41/30
  6. So, 36/40 + 42/90 = 41/30
    In mixed form: 111/30

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