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Add 80/40 and 3/70

1st number: 2 0/40, 2nd number: 3/70

80/40 + 3/70 is 143/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 70 is 280

    Next, find the equivalent fraction of both fractional numbers with denominator 280
  2. For the 1st fraction, since 40 × 7 = 280,
    80/40 = 80 × 7/40 × 7 = 560/280
  3. Likewise, for the 2nd fraction, since 70 × 4 = 280,
    3/70 = 3 × 4/70 × 4 = 12/280
  4. Add the two like fractions:
    560/280 + 12/280 = 560 + 12/280 = 572/280
  5. 572/280 simplified gives 143/70
  6. So, 80/40 + 3/70 = 143/70
    In mixed form: 23/70

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