Add 15/20 and 16/7
1st number: 15/20, 2nd number: 2 2/7
15/20 + 16/7 is 85/28.
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,
15/20 = 15 × 7/20 × 7 = 105/140 - Likewise, for the 2nd fraction, since 7 × 20 = 140,
16/7 = 16 × 20/7 × 20 = 320/140 - Add the two like fractions:
105/140 + 320/140 = 105 + 320/140 = 425/140 - 425/140 simplified gives 85/28
- So, 15/20 + 16/7 = 85/28
In mixed form: 31/28
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