Add 70/30 and 21/7
1st number: 2 10/30, 2nd number: 3 0/7
70/30 + 21/7 is 16/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 7 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
70/30 = 70 × 7/30 × 7 = 490/210 - Likewise, for the 2nd fraction, since 7 × 30 = 210,
21/7 = 21 × 30/7 × 30 = 630/210 - Add the two like fractions:
490/210 + 630/210 = 490 + 630/210 = 1120/210 - 1120/210 simplified gives 16/3
- So, 70/30 + 21/7 = 16/3
In mixed form: 51/3
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