Add 54/7 and 9/20
1st number: 7 5/7, 2nd number: 9/20
54/7 + 9/20 is 1143/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 7 × 20 = 140,
54/7 = 54 × 20/7 × 20 = 1080/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
9/20 = 9 × 7/20 × 7 = 63/140 - Add the two like fractions:
1080/140 + 63/140 = 1080 + 63/140 = 1143/140 - So, 54/7 + 9/20 = 1143/140
In mixed form: 823/140
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