Add 30/40 and 45/10
1st number: 30/40, 2nd number: 4 5/10
30/40 + 45/10 is 21/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 10 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
30/40 = 30 × 1/40 × 1 = 30/40 - Likewise, for the 2nd fraction, since 10 × 4 = 40,
45/10 = 45 × 4/10 × 4 = 180/40 - Add the two like fractions:
30/40 + 180/40 = 30 + 180/40 = 210/40 - 210/40 simplified gives 21/4
- So, 30/40 + 45/10 = 21/4
In mixed form: 51/4
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