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Add 1/70 and 21/30

1/70 + 21/30 is 5/7.

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,
    1/70 = 1 × 3/70 × 3 = 3/210
  3. Likewise, for the 2nd fraction, since 30 × 7 = 210,
    21/30 = 21 × 7/30 × 7 = 147/210
  4. Add the two fractions:
    3/210 + 147/210 = 3 + 147/210 = 150/210
  5. 150/210 simplified gives 5/7
  6. So, 1/70 + 21/30 = 5/7

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