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Add 28/80 and 5/70

28/80 + 5/70 is 59/140.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 70 is 560

    Next, find the equivalent fraction of both fractional numbers with denominator 560
  2. For the 1st fraction, since 80 × 7 = 560,
    28/80 = 28 × 7/80 × 7 = 196/560
  3. Likewise, for the 2nd fraction, since 70 × 8 = 560,
    5/70 = 5 × 8/70 × 8 = 40/560
  4. Add the two like fractions:
    196/560 + 40/560 = 196 + 40/560 = 236/560
  5. 236/560 simplified gives 59/140
  6. So, 28/80 + 5/70 = 59/140

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