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Add 42/70 and 15/8

1st number: 42/70, 2nd number: 1 7/8

42/70 + 15/8 is 99/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 8 is 280
  2. For the 1st fraction, since 70 × 4 = 280,
    42/70 = 42 × 4/70 × 4 = 168/280
  3. Likewise, for the 2nd fraction, since 8 × 35 = 280,
    15/8 = 15 × 35/8 × 35 = 525/280
  4. Add the two fractions:
    168/280 + 525/280 = 168 + 525/280 = 693/280
  5. After reducing the fraction, the answer is 99/40
  6. In mixed form: 219/40

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