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Add 9/90 and 90/70

1st number: 9/90, 2nd number: 1 20/70

9/90 + 90/70 is 97/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 70 is 630
  2. For the 1st fraction, since 90 × 7 = 630,
    9/90 = 9 × 7/90 × 7 = 63/630
  3. Likewise, for the 2nd fraction, since 70 × 9 = 630,
    90/70 = 90 × 9/70 × 9 = 810/630
  4. Add the two fractions:
    63/630 + 810/630 = 63 + 810/630 = 873/630
  5. 873/630 simplified gives 97/70
  6. So, 9/90 + 90/70 = 97/70
    In mixed form: 127/70

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