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Add 7/70 and 4/72

7/70 + 4/72 is 7/45.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 2520
  2. For the 1st fraction, since 70 × 36 = 2520,
    7/70 = 7 × 36/70 × 36 = 252/2520
  3. Likewise, for the 2nd fraction, since 72 × 35 = 2520,
    4/72 = 4 × 35/72 × 35 = 140/2520
  4. Add the two like fractions:
    252/2520 + 140/2520 = 252 + 140/2520 = 392/2520
  5. 392/2520 simplified gives 7/45
  6. So, 7/70 + 4/72 = 7/45

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