Add 70/25 and 21/12
1st number: 2 20/25, 2nd number: 1 9/12
70/25 + 21/12 is 91/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 12 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 25 × 12 = 300,
70/25 = 70 × 12/25 × 12 = 840/300 - Likewise, for the 2nd fraction, since 12 × 25 = 300,
21/12 = 21 × 25/12 × 25 = 525/300 - Add the two like fractions:
840/300 + 525/300 = 840 + 525/300 = 1365/300 - 1365/300 simplified gives 91/20
- So, 70/25 + 21/12 = 91/20
In mixed form: 411/20
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