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Add 42/10 and 70/9

1st number: 4 2/10, 2nd number: 7 7/9

42/10 + 70/9 is 539/45.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 9 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 10 × 9 = 90,
    42/10 = 42 × 9/10 × 9 = 378/90
  3. Likewise, for the 2nd fraction, since 9 × 10 = 90,
    70/9 = 70 × 10/9 × 10 = 700/90
  4. Add the two like fractions:
    378/90 + 700/90 = 378 + 700/90 = 1078/90
  5. 1078/90 simplified gives 539/45
  6. So, 42/10 + 70/9 = 539/45
    In mixed form: 1144/45

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