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Add 70/80 and 20/28

70/80 + 20/28 is 89/56.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 28 is 560

    Next, find the equivalent fraction of both fractional numbers with denominator 560
  2. For the 1st fraction, since 80 × 7 = 560,
    70/80 = 70 × 7/80 × 7 = 490/560
  3. Likewise, for the 2nd fraction, since 28 × 20 = 560,
    20/28 = 20 × 20/28 × 20 = 400/560
  4. Add the two like fractions:
    490/560 + 400/560 = 490 + 400/560 = 890/560
  5. 890/560 simplified gives 89/56
  6. So, 70/80 + 20/28 = 89/56
    In mixed form: 133/56

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