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Add 72/70 and 42/30

1st number: 1 2/70, 2nd number: 1 12/30

72/70 + 42/30 is 17/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 30 is 210
  2. For the 1st fraction, since 70 × 3 = 210,
    72/70 = 72 × 3/70 × 3 = 216/210
  3. Likewise, for the 2nd fraction, since 30 × 7 = 210,
    42/30 = 42 × 7/30 × 7 = 294/210
  4. Add the two fractions:
    216/210 + 294/210 = 216 + 294/210 = 510/210
  5. 510/210 simplified gives 17/7
  6. So, 72/70 + 42/30 = 17/7
    In mixed form: 23/7

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