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Add 42/7 and 18/90

1st number: 6 0/7, 2nd number: 18/90

42/7 + 18/90 is 31/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 90 is 630
  2. For the 1st fraction, since 7 × 90 = 630,
    42/7 = 42 × 90/7 × 90 = 3780/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    18/90 = 18 × 7/90 × 7 = 126/630
  4. Add the two fractions:
    3780/630 + 126/630 = 3780 + 126/630 = 3906/630
  5. 3906/630 simplified gives 31/5
  6. So, 42/7 + 18/90 = 31/5
    In mixed form: 61/5

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