Add 20/70 and 18/20
20/70 + 18/20 is 83/70.
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,
20/70 = 20 × 2/70 × 2 = 40/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
18/20 = 18 × 7/20 × 7 = 126/140 - Add the two like fractions:
40/140 + 126/140 = 40 + 126/140 = 166/140 - 166/140 simplified gives 83/70
- So, 20/70 + 18/20 = 83/70
In mixed form: 113/70
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