Add 6/20 and 81/7
1st number: 6/20, 2nd number: 11 4/7
6/20 + 81/7 is 831/70.
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,
6/20 = 6 × 7/20 × 7 = 42/140 - Likewise, for the 2nd fraction, since 7 × 20 = 140,
81/7 = 81 × 20/7 × 20 = 1620/140 - Add the two like fractions:
42/140 + 1620/140 = 42 + 1620/140 = 1662/140 - 1662/140 simplified gives 831/70
- So, 6/20 + 81/7 = 831/70
In mixed form: 1161/70
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