Add 75/30 and 4/21
1st number: 2 15/30, 2nd number: 4/21
75/30 + 4/21 is 113/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 21 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
75/30 = 75 × 7/30 × 7 = 525/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
4/21 = 4 × 10/21 × 10 = 40/210 - Add the two like fractions:
525/210 + 40/210 = 525 + 40/210 = 565/210 - 565/210 simplified gives 113/42
- So, 75/30 + 4/21 = 113/42
In mixed form: 229/42
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