Add 70/20 and 70/7
1st number: 3 10/20, 2nd number: 10 0/7
70/20 + 70/7 is 27/2.
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,
70/7 = 70 × 20/7 × 20 = 1400/140 - Add the two like fractions:
490/140 + 1400/140 = 490 + 1400/140 = 1890/140 - 1890/140 simplified gives 27/2
- So, 70/20 + 70/7 = 27/2
In mixed form: 131/2
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