Add 21/3 and 45/72
1st number: 7 0/3, 2nd number: 45/72
21/3 + 45/72 is 61/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 3 × 24 = 72,
21/3 = 21 × 24/3 × 24 = 504/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
45/72 = 45 × 1/72 × 1 = 45/72 - Add the two like fractions:
504/72 + 45/72 = 504 + 45/72 = 549/72 - 549/72 simplified gives 61/8
- So, 21/3 + 45/72 = 61/8
In mixed form: 75/8
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