Add 20/70 and 18/8
1st number: 20/70, 2nd number: 2 2/8
20/70 + 18/8 is 71/28.
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,
20/70 = 20 × 4/70 × 4 = 80/280 - Likewise, for the 2nd fraction, since 8 × 35 = 280,
18/8 = 18 × 35/8 × 35 = 630/280 - Add the two like fractions:
80/280 + 630/280 = 80 + 630/280 = 710/280 - 710/280 simplified gives 71/28
- So, 20/70 + 18/8 = 71/28
In mixed form: 215/28
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