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Add 30/28 and 42/90

1st number: 1 2/28, 2nd number: 42/90

30/28 + 42/90 is 323/210.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 90 is 1260
  2. For the 1st fraction, since 28 × 45 = 1260,
    30/28 = 30 × 45/28 × 45 = 1350/1260
  3. Likewise, for the 2nd fraction, since 90 × 14 = 1260,
    42/90 = 42 × 14/90 × 14 = 588/1260
  4. Add the two fractions:
    1350/1260 + 588/1260 = 1350 + 588/1260 = 1938/1260
  5. 1938/1260 simplified gives 323/210
  6. So, 30/28 + 42/90 = 323/210
    In mixed form: 1113/210

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