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Add 75/70 and 60/80

1st number: 1 5/70, 2nd number: 60/80

75/70 + 60/80 is 51/28.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 560
  2. For the 1st fraction, since 70 × 8 = 560,
    75/70 = 75 × 8/70 × 8 = 600/560
  3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
    60/80 = 60 × 7/80 × 7 = 420/560
  4. Add the two like fractions:
    600/560 + 420/560 = 600 + 420/560 = 1020/560
  5. 1020/560 simplified gives 51/28
  6. So, 75/70 + 60/80 = 51/28
    In mixed form: 123/28

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