Add 21/15 and 45/32
1st number: 1 6/15, 2nd number: 1 13/32
21/15 + 45/32 is 449/160.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 32 is 480
Next, find the equivalent fraction of both fractional numbers with denominator 480 - For the 1st fraction, since 15 × 32 = 480,
21/15 = 21 × 32/15 × 32 = 672/480 - Likewise, for the 2nd fraction, since 32 × 15 = 480,
45/32 = 45 × 15/32 × 15 = 675/480 - Add the two like fractions:
672/480 + 675/480 = 672 + 675/480 = 1347/480 - 1347/480 simplified gives 449/160
- So, 21/15 + 45/32 = 449/160
In mixed form: 2129/160
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