Add 25/70 and 21/60
25/70 + 21/60 is 99/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 70 × 6 = 420,
25/70 = 25 × 6/70 × 6 = 150/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
21/60 = 21 × 7/60 × 7 = 147/420 - Add the two like fractions:
150/420 + 147/420 = 150 + 147/420 = 297/420 - 297/420 simplified gives 99/140
- So, 25/70 + 21/60 = 99/140
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