Add 28/70 and 21/25
28/70 + 21/25 is 31/25.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 25 is 350
Next, find the equivalent fraction of both fractional numbers with denominator 350 - For the 1st fraction, since 70 × 5 = 350,
28/70 = 28 × 5/70 × 5 = 140/350 - Likewise, for the 2nd fraction, since 25 × 14 = 350,
21/25 = 21 × 14/25 × 14 = 294/350 - Add the two like fractions:
140/350 + 294/350 = 140 + 294/350 = 434/350 - 434/350 simplified gives 31/25
- So, 28/70 + 21/25 = 31/25
In mixed form: 16/25
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