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Add 42/35 and 21/30

1st number: 1 7/35, 2nd number: 21/30

42/35 + 21/30 is 19/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 35 and 30 is 210
  2. For the 1st fraction, since 35 × 6 = 210,
    42/35 = 42 × 6/35 × 6 = 252/210
  3. Likewise, for the 2nd fraction, since 30 × 7 = 210,
    21/30 = 21 × 7/30 × 7 = 147/210
  4. Add the two fractions:
    252/210 + 147/210 = 252 + 147/210 = 399/210
  5. 399/210 simplified gives 19/10
  6. So, 42/35 + 21/30 = 19/10
    In mixed form: 19/10

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