Add 54/20 and 56/70
1st number: 2 14/20, 2nd number: 56/70
54/20 + 56/70 is 7/2.
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,
54/20 = 54 × 7/20 × 7 = 378/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
56/70 = 56 × 2/70 × 2 = 112/140 - Add the two like fractions:
378/140 + 112/140 = 378 + 112/140 = 490/140 - 490/140 simplified gives 7/2
- So, 54/20 + 56/70 = 7/2
In mixed form: 31/2
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