Add 6/20 and 90/7
1st number: 6/20, 2nd number: 12 6/7
6/20 + 90/7 is 921/70.
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,
90/7 = 90 × 20/7 × 20 = 1800/140 - Add the two like fractions:
42/140 + 1800/140 = 42 + 1800/140 = 1842/140 - 1842/140 simplified gives 921/70
- So, 6/20 + 90/7 = 921/70
In mixed form: 1311/70
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