Add 80/70 and 75/40
1st number: 1 10/70, 2nd number: 1 35/40
80/70 + 75/40 is 169/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 70 × 4 = 280,
80/70 = 80 × 4/70 × 4 = 320/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
75/40 = 75 × 7/40 × 7 = 525/280 - Add the two like fractions:
320/280 + 525/280 = 320 + 525/280 = 845/280 - 845/280 simplified gives 169/56
- So, 80/70 + 75/40 = 169/56
In mixed form: 31/56
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