Add 5/20 and 18/7
1st number: 5/20, 2nd number: 2 4/7
5/20 + 18/7 is 79/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 7 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
5/20 = 5 × 7/20 × 7 = 35/140 - Likewise, for the 2nd fraction, since 7 × 20 = 140,
18/7 = 18 × 20/7 × 20 = 360/140 - Add the two like fractions:
35/140 + 360/140 = 35 + 360/140 = 395/140 - 395/140 simplified gives 79/28
- So, 5/20 + 18/7 = 79/28
In mixed form: 223/28
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