Add 70/21 and 20/48
1st number: 3 7/21, 2nd number: 20/48
70/21 + 20/48 is 15/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 48 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 21 × 16 = 336,
70/21 = 70 × 16/21 × 16 = 1120/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
20/48 = 20 × 7/48 × 7 = 140/336 - Add the two like fractions:
1120/336 + 140/336 = 1120 + 140/336 = 1260/336 - 1260/336 simplified gives 15/4
- So, 70/21 + 20/48 = 15/4
In mixed form: 33/4
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