Add 54/45 and 21/15
1st number: 1 9/45, 2nd number: 1 6/15
54/45 + 21/15 is 13/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 15 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 45 × 1 = 45,
54/45 = 54 × 1/45 × 1 = 54/45 - Likewise, for the 2nd fraction, since 15 × 3 = 45,
21/15 = 21 × 3/15 × 3 = 63/45 - Add the two like fractions:
54/45 + 63/45 = 54 + 63/45 = 117/45 - 117/45 simplified gives 13/5
- So, 54/45 + 21/15 = 13/5
In mixed form: 23/5
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