Add 21/8 and 45/30
1st number: 2 5/8, 2nd number: 1 15/30
21/8 + 45/30 is 33/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 30 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 8 × 15 = 120,
21/8 = 21 × 15/8 × 15 = 315/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
45/30 = 45 × 4/30 × 4 = 180/120 - Add the two like fractions:
315/120 + 180/120 = 315 + 180/120 = 495/120 - 495/120 simplified gives 33/8
- So, 21/8 + 45/30 = 33/8
In mixed form: 41/8
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