Add 70/20 and 14/7
1st number: 3 10/20, 2nd number: 2 0/7
70/20 + 14/7 is 11/2.
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,
70/20 = 70 × 7/20 × 7 = 490/140 - Likewise, for the 2nd fraction, since 7 × 20 = 140,
14/7 = 14 × 20/7 × 20 = 280/140 - Add the two like fractions:
490/140 + 280/140 = 490 + 280/140 = 770/140 - 770/140 simplified gives 11/2
- So, 70/20 + 14/7 = 11/2
In mixed form: 51/2
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