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Add 72/10 and 1/90

1st number: 7 2/10, 2nd number: 1/90

72/10 + 1/90 is 649/90.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 90 is 90
  2. For the 1st fraction, since 10 × 9 = 90,
    72/10 = 72 × 9/10 × 9 = 648/90
  3. Likewise, for the 2nd fraction, since 90 × 1 = 90,
    1/90 = 1 × 1/90 × 1 = 1/90
  4. Add the two fractions:
    648/90 + 1/90 = 648 + 1/90 = 649/90
  5. In mixed form: 719/90

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