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Add 4/10 and 42/80

4/10 + 42/80 is 37/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 80 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 10 × 8 = 80,
    4/10 = 4 × 8/10 × 8 = 32/80
  3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
    42/80 = 42 × 1/80 × 1 = 42/80
  4. Add the two like fractions:
    32/80 + 42/80 = 32 + 42/80 = 74/80
  5. 74/80 simplified gives 37/40
  6. So, 4/10 + 42/80 = 37/40

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