Add 28/70 and 15/8
1st number: 28/70, 2nd number: 1 7/8
28/70 + 15/8 is 91/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 8 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 70 × 4 = 280,
28/70 = 28 × 4/70 × 4 = 112/280 - Likewise, for the 2nd fraction, since 8 × 35 = 280,
15/8 = 15 × 35/8 × 35 = 525/280 - Add the two like fractions:
112/280 + 525/280 = 112 + 525/280 = 637/280 - 637/280 simplified gives 91/40
- So, 28/70 + 15/8 = 91/40
In mixed form: 211/40
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