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Add 54/70 and 20/40

54/70 + 20/40 is 89/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 40 is 280
  2. For the 1st fraction, since 70 × 4 = 280,
    54/70 = 54 × 4/70 × 4 = 216/280
  3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
    20/40 = 20 × 7/40 × 7 = 140/280
  4. Add the two fractions:
    216/280 + 140/280 = 216 + 140/280 = 356/280
  5. 356/280 simplified gives 89/70
  6. So, 54/70 + 20/40 = 89/70
    In mixed form: 119/70

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