Add 30/70 and 40/20
1st number: 30/70, 2nd number: 2 0/20
30/70 + 40/20 is 17/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 70 × 2 = 140,
30/70 = 30 × 2/70 × 2 = 60/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
40/20 = 40 × 7/20 × 7 = 280/140 - Add the two like fractions:
60/140 + 280/140 = 60 + 280/140 = 340/140 - 340/140 simplified gives 17/7
- So, 30/70 + 40/20 = 17/7
In mixed form: 23/7
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