Add 21/15 and 45/64
1st number: 1 6/15, 2nd number: 45/64
21/15 + 45/64 is 673/320.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 64 is 960
Next, find the equivalent fraction of both fractional numbers with denominator 960 - For the 1st fraction, since 15 × 64 = 960,
21/15 = 21 × 64/15 × 64 = 1344/960 - Likewise, for the 2nd fraction, since 64 × 15 = 960,
45/64 = 45 × 15/64 × 15 = 675/960 - Add the two like fractions:
1344/960 + 675/960 = 1344 + 675/960 = 2019/960 - 2019/960 simplified gives 673/320
- So, 21/15 + 45/64 = 673/320
In mixed form: 233/320
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