Add 40/30 and 7/21
1st number: 1 10/30, 2nd number: 7/21
40/30 + 7/21 is 5/3.
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,
40/30 = 40 × 7/30 × 7 = 280/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
7/21 = 7 × 10/21 × 10 = 70/210 - Add the two like fractions:
280/210 + 70/210 = 280 + 70/210 = 350/210 - 350/210 simplified gives 5/3
- So, 40/30 + 7/21 = 5/3
In mixed form: 12/3
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