Add 7/15 and 54/63
7/15 + 54/63 is 139/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 63 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 15 × 21 = 315,
7/15 = 7 × 21/15 × 21 = 147/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
54/63 = 54 × 5/63 × 5 = 270/315 - Add the two like fractions:
147/315 + 270/315 = 147 + 270/315 = 417/315 - 417/315 simplified gives 139/105
- So, 7/15 + 54/63 = 139/105
In mixed form: 134/105
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