Add 30/8 and 45/30
1st number: 3 6/8, 2nd number: 1 15/30
30/8 + 45/30 is 21/4.
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,
30/8 = 30 × 15/8 × 15 = 450/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
45/30 = 45 × 4/30 × 4 = 180/120 - Add the two like fractions:
450/120 + 180/120 = 450 + 180/120 = 630/120 - 630/120 simplified gives 21/4
- So, 30/8 + 45/30 = 21/4
In mixed form: 51/4
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