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Add 45/40 and 80/70

1st number: 1 5/40, 2nd number: 1 10/70

45/40 + 80/70 is 127/56.

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,
    45/40 = 45 × 7/40 × 7 = 315/280
  3. Likewise, for the 2nd fraction, since 70 × 4 = 280,
    80/70 = 80 × 4/70 × 4 = 320/280
  4. Add the two like fractions:
    315/280 + 320/280 = 315 + 320/280 = 635/280
  5. 635/280 simplified gives 127/56
  6. So, 45/40 + 80/70 = 127/56
    In mixed form: 215/56

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