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Add 42/15 and 70/9

1st number: 2 12/15, 2nd number: 7 7/9

42/15 + 70/9 is 476/45.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 9 is 45
  2. For the 1st fraction, since 15 × 3 = 45,
    42/15 = 42 × 3/15 × 3 = 126/45
  3. Likewise, for the 2nd fraction, since 9 × 5 = 45,
    70/9 = 70 × 5/9 × 5 = 350/45
  4. Add the two fractions:
    126/45 + 350/45 = 126 + 350/45 = 476/45
  5. So, 42/15 + 70/9 = 476/45
    In mixed form: 1026/45

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