Add 21/70 and 15/24
21/70 + 15/24 is 37/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 24 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 70 × 12 = 840,
21/70 = 21 × 12/70 × 12 = 252/840 - Likewise, for the 2nd fraction, since 24 × 35 = 840,
15/24 = 15 × 35/24 × 35 = 525/840 - Add the two like fractions:
252/840 + 525/840 = 252 + 525/840 = 777/840 - 777/840 simplified gives 37/40
- So, 21/70 + 15/24 = 37/40
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