Add 54/63 and 42/15
1st number: 54/63, 2nd number: 2 12/15
54/63 + 42/15 is 128/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 15 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 63 × 5 = 315,
54/63 = 54 × 5/63 × 5 = 270/315 - Likewise, for the 2nd fraction, since 15 × 21 = 315,
42/15 = 42 × 21/15 × 21 = 882/315 - Add the two like fractions:
270/315 + 882/315 = 270 + 882/315 = 1152/315 - 1152/315 simplified gives 128/35
- So, 54/63 + 42/15 = 128/35
In mixed form: 323/35
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