Add 63/45 and 15/20
1st number: 1 18/45, 2nd number: 15/20
63/45 + 15/20 is 43/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
63/45 = 63 × 4/45 × 4 = 252/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
15/20 = 15 × 9/20 × 9 = 135/180 - Add the two like fractions:
252/180 + 135/180 = 252 + 135/180 = 387/180 - 387/180 simplified gives 43/20
- So, 63/45 + 15/20 = 43/20
In mixed form: 23/20
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