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Add 21/14 and 70/80

1st number: 1 7/14, 2nd number: 70/80

21/14 + 70/80 is 19/8.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 14 and 80 is 560

    Next, find the equivalent fraction of both fractional numbers with denominator 560
  2. For the 1st fraction, since 14 × 40 = 560,
    21/14 = 21 × 40/14 × 40 = 840/560
  3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
    70/80 = 70 × 7/80 × 7 = 490/560
  4. Add the two like fractions:
    840/560 + 490/560 = 840 + 490/560 = 1330/560
  5. 1330/560 simplified gives 19/8
  6. So, 21/14 + 70/80 = 19/8
    In mixed form: 23/8

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