SHANGHAI/SINGAPORE, June 20 (Reuters) - China left benchmark lending rates unchanged at a monthly fixing on Thursday, in line with market expectations.

The one-year loan prime rate (LPR) was kept at 3.45%, while the five-year LPR was unchanged at 3.95%.

In a Reuters survey of 30 market participants conducted this week, 21, or 70% of all respondents, expected both rates to stay unchanged.

Most new and outstanding loans in China are based on the one-year LPR, while the five-year rate influences the pricing of mortgages.

(Reporting by Winni Zhou and Tom Westbrook; Editing by Kim Coghill)