Add 81/70 and 20/8
1st number: 1 11/70, 2nd number: 2 4/8
81/70 + 20/8 is 128/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 8 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 70 × 4 = 280,
81/70 = 81 × 4/70 × 4 = 324/280 - Likewise, for the 2nd fraction, since 8 × 35 = 280,
20/8 = 20 × 35/8 × 35 = 700/280 - Add the two like fractions:
324/280 + 700/280 = 324 + 700/280 = 1024/280 - 1024/280 simplified gives 128/35
- So, 81/70 + 20/8 = 128/35
In mixed form: 323/35
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