Add 28/70 and 54/20
1st number: 28/70, 2nd number: 2 14/20
28/70 + 54/20 is 31/10.
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,
28/70 = 28 × 2/70 × 2 = 56/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
54/20 = 54 × 7/20 × 7 = 378/140 - Add the two like fractions:
56/140 + 378/140 = 56 + 378/140 = 434/140 - 434/140 simplified gives 31/10
- So, 28/70 + 54/20 = 31/10
In mixed form: 31/10
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