Add 21/20 and 24/70
1st number: 1 1/20, 2nd number: 24/70
21/20 + 24/70 is 39/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
21/20 = 21 × 7/20 × 7 = 147/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
24/70 = 24 × 2/70 × 2 = 48/140 - Add the two like fractions:
147/140 + 48/140 = 147 + 48/140 = 195/140 - 195/140 simplified gives 39/28
- So, 21/20 + 24/70 = 39/28
In mixed form: 111/28
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