Add 7/20 and 54/63
7/20 + 54/63 is 169/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 63 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 20 × 63 = 1260,
7/20 = 7 × 63/20 × 63 = 441/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
54/63 = 54 × 20/63 × 20 = 1080/1260 - Add the two like fractions:
441/1260 + 1080/1260 = 441 + 1080/1260 = 1521/1260 - 1521/1260 simplified gives 169/140
- So, 7/20 + 54/63 = 169/140
In mixed form: 129/140
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