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Add 45/72 and 35/70

45/72 + 35/70 is 9/8.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 70 is 2520

    Next, find the equivalent fraction of both fractional numbers with denominator 2520
  2. For the 1st fraction, since 72 × 35 = 2520,
    45/72 = 45 × 35/72 × 35 = 1575/2520
  3. Likewise, for the 2nd fraction, since 70 × 36 = 2520,
    35/70 = 35 × 36/70 × 36 = 1260/2520
  4. Add the two like fractions:
    1575/2520 + 1260/2520 = 1575 + 1260/2520 = 2835/2520
  5. 2835/2520 simplified gives 9/8
  6. So, 45/72 + 35/70 = 9/8
    In mixed form: 11/8

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