Add 70/20 and 28/70
1st number: 3 10/20, 2nd number: 28/70
70/20 + 28/70 is 39/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 70 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 70 × 2 = 140,
28/70 = 28 × 2/70 × 2 = 56/140 - Add the two like fractions:
490/140 + 56/140 = 490 + 56/140 = 546/140 - 546/140 simplified gives 39/10
- So, 70/20 + 28/70 = 39/10
In mixed form: 39/10
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