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Add 28/70 and 98/80

1st number: 28/70, 2nd number: 1 18/80

28/70 + 98/80 is 13/8.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 80 is 560
  2. For the 1st fraction, since 70 × 8 = 560,
    28/70 = 28 × 8/70 × 8 = 224/560
  3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
    98/80 = 98 × 7/80 × 7 = 686/560
  4. Add the two fractions:
    224/560 + 686/560 = 224 + 686/560 = 910/560
  5. 910/560 simplified gives 13/8
  6. So, 28/70 + 98/80 = 13/8
    In mixed form: 15/8

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