Add 48/70 and 70/21
1st number: 48/70, 2nd number: 3 7/21
48/70 + 70/21 is 422/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 21 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
48/70 = 48 × 3/70 × 3 = 144/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
70/21 = 70 × 10/21 × 10 = 700/210 - Add the two like fractions:
144/210 + 700/210 = 144 + 700/210 = 844/210 - 844/210 simplified gives 422/105
- So, 48/70 + 70/21 = 422/105
In mixed form: 42/105
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