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Add 21/8 and 56/70

1st number: 2 5/8, 2nd number: 56/70

21/8 + 56/70 is 137/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 70 is 280
  2. For the 1st fraction, since 8 × 35 = 280,
    21/8 = 21 × 35/8 × 35 = 735/280
  3. Likewise, for the 2nd fraction, since 70 × 4 = 280,
    56/70 = 56 × 4/70 × 4 = 224/280
  4. Add the two fractions:
    735/280 + 224/280 = 735 + 224/280 = 959/280
  5. 959/280 simplified gives 137/40
  6. So, 21/8 + 56/70 = 137/40
    In mixed form: 317/40

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