Add 21/70 and 72/28
1st number: 21/70, 2nd number: 2 16/28
21/70 + 72/28 is 201/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 70 × 2 = 140,
21/70 = 21 × 2/70 × 2 = 42/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
72/28 = 72 × 5/28 × 5 = 360/140 - Add the two like fractions:
42/140 + 360/140 = 42 + 360/140 = 402/140 - 402/140 simplified gives 201/70
- So, 21/70 + 72/28 = 201/70
In mixed form: 261/70
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