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Add 4/70 and 2/80

4/70 + 2/80 is 23/280.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 80 is 560
  2. For the 1st fraction, since 70 × 8 = 560,
    4/70 = 4 × 8/70 × 8 = 32/560
  3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
    2/80 = 2 × 7/80 × 7 = 14/560
  4. Add the two fractions:
    32/560 + 14/560 = 32 + 14/560 = 46/560
  5. After reducing the fraction, the answer is 23/280

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